From nicolasg at vtrip.net  Tue Jan  3 00:52:38 2006
From: nicolasg at vtrip.net (Nicolas Georgakopoulos)
Date: Tue, 03 Jan 2006 01:52:38 +0200
Subject: [Image-SIG] does any one have the stego.py module ?
Message-ID: <43B9BCC6.6030906@vtrip.net>

Hi , I'm planning to write a program for steganography applications. 
Searching google I found about this program that can hide text inside 
images using PIL.
The author page is on line but the file stego.py does not exist.

If any one have this file please send it to me... it will help me on my 
research.


thanks and happy new year :)

From phr-2005 at nightsong.com  Tue Jan  3 14:00:25 2006
From: phr-2005 at nightsong.com (Paul Rubin)
Date: 3 Jan 2006 13:00:25 -0000
Subject: [Image-SIG] apparent typo in pilfont doc
Message-ID: <20060103130025.11286.qmail@brouhaha.com>

http://www.pythonware.com/library/pil/handbook/pilfont.htm

I think "pdf" is supposed to say "pcf".  If not, an explanation is
needed.

From calmasy at gmail.com  Thu Jan  5 20:49:17 2006
From: calmasy at gmail.com (=?ISO-8859-1?Q?Count_L=E1szl=F3_de_Alm=E1sy?=)
Date: Thu, 5 Jan 2006 12:49:17 -0700
Subject: [Image-SIG] PIL resize with aspect ratio?
Message-ID: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>

Greetings,

I'm new to PIL, and am wondering if the following is possible.

I want to resize an image by only specifying the width, but not the
height.  The height should be expanded or contracted automatically to
fit the width value while maintaining the aspect ratio of the image.

Second, I want to be able to specify the JPEG compression level.

If you are familiar with ImageMagick, these would be accomplished
using the following for example:

% mogrify -quality 95 -resize 500x big.jpg

I can't figure out whether these things are possible from the PIL
documentation or not.  Any ideas?

Thanks.

From calmasy at gmail.com  Thu Jan  5 21:17:49 2006
From: calmasy at gmail.com (=?ISO-8859-1?Q?Count_L=E1szl=F3_de_Alm=E1sy?=)
Date: Thu, 5 Jan 2006 13:17:49 -0700
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <6dd0218e36b278f07d48bf29f1961508@cogdon.org>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
	<6dd0218e36b278f07d48bf29f1961508@cogdon.org>
Message-ID: <abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>

Thanks.  How about setting the JPEG compression setting?

Conceptually what I'm trying to do is the following:

Take an image file of arbitrary size and of arbitrary width and height,
and rescale it to a width of exactly 500 and a height of whatever,
as long as the aspect ratio is preserved.  Additionally, the rescaled
image must be < 100kb in size, but I want to preserve as much
quality as possible.  My thought was that if I could specify the
JPEG compression ratio as I can with ImageMagick, I could start
at a high value and iteratively go lower and lower until a rescaled
image file is produced that is just under 100kb size.

On 1/5/06, Chris Cogdon <chris at cogdon.org> wrote:
>
> On Jan 5, 2006, at 11:49, Count L?szl? de Alm?sy wrote:
>
> > Greetings,
> >
> > I'm new to PIL, and am wondering if the following is possible.
> >
> > I want to resize an image by only specifying the width, but not the
> > height.  The height should be expanded or contracted automatically to
> > fit the width value while maintaining the aspect ratio of the image.
> >
> > Second, I want to be able to specify the JPEG compression level.
> >
> > If you are familiar with ImageMagick, these would be accomplished
> > using the following for example:
> >
> > % mogrify -quality 95 -resize 500x big.jpg
> >
> > I can't figure out whether these things are possible from the PIL
> > documentation or not.  Any ideas?
>
> i.thumbnail ( (128,128), Image.ANTIALIAS )
>
> this will create a thumbnail that is no more than 128x128, but will
> keep the original geometry.
>
>
> --
>     ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
>      . . `; -._    )-;-,_`)
>     (v_,)'  _  )`-.\  ``-'
>    _.- _..-_/ / ((.'
> ((,.-'   ((,/   fL
>
>

From chris at cogdon.org  Thu Jan  5 20:55:31 2006
From: chris at cogdon.org (Chris Cogdon)
Date: Thu, 5 Jan 2006 11:55:31 -0800
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
Message-ID: <6dd0218e36b278f07d48bf29f1961508@cogdon.org>


On Jan 5, 2006, at 11:49, Count L?szl? de Alm?sy wrote:

> Greetings,
>
> I'm new to PIL, and am wondering if the following is possible.
>
> I want to resize an image by only specifying the width, but not the
> height.  The height should be expanded or contracted automatically to
> fit the width value while maintaining the aspect ratio of the image.
>
> Second, I want to be able to specify the JPEG compression level.
>
> If you are familiar with ImageMagick, these would be accomplished
> using the following for example:
>
> % mogrify -quality 95 -resize 500x big.jpg
>
> I can't figure out whether these things are possible from the PIL
> documentation or not.  Any ideas?

i.thumbnail ( (128,128), Image.ANTIALIAS )

this will create a thumbnail that is no more than 128x128, but will 
keep the original geometry.


-- 
    ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
     . . `; -._    )-;-,_`)
    (v_,)'  _  )`-.\  ``-'
   _.- _..-_/ / ((.'
((,.-'   ((,/   fL


From chris at cogdon.org  Thu Jan  5 22:24:54 2006
From: chris at cogdon.org (Chris Cogdon)
Date: Thu, 5 Jan 2006 13:24:54 -0800
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
	<6dd0218e36b278f07d48bf29f1961508@cogdon.org>
	<abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>
Message-ID: <0948395badaeef11aca65707e4ccd13d@cogdon.org>


On Jan 5, 2006, at 12:17, Count L?szl? de Alm?sy wrote:

> Thanks.  How about setting the JPEG compression setting?
>
> Conceptually what I'm trying to do is the following:
>
> Take an image file of arbitrary size and of arbitrary width and height,
> and rescale it to a width of exactly 500 and a height of whatever,
> as long as the aspect ratio is preserved.  Additionally, the rescaled
> image must be < 100kb in size, but I want to preserve as much
> quality as possible.  My thought was that if I could specify the
> JPEG compression ratio as I can with ImageMagick, I could start
> at a high value and iteratively go lower and lower until a rescaled
> image file is produced that is just under 100kb size.

The thumbnail command just creates the thumbnail image in memory, but 
doesn't 'compress' it yet. You do the compression when you save it as a 
particular format, and then you can set the compression. here's a more 
complete example:

i = Image.open ( path )
i.thumbnail ( (128,128), Image.ANTIALIAS )
i.save ( thumb_path, quality=75 )


-- 
    ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
     . . `; -._    )-;-,_`)
    (v_,)'  _  )`-.\  ``-'
   _.- _..-_/ / ((.'
((,.-'   ((,/   fL


From calmasy at gmail.com  Thu Jan  5 23:25:10 2006
From: calmasy at gmail.com (=?ISO-8859-1?Q?Count_L=E1szl=F3_de_Alm=E1sy?=)
Date: Thu, 5 Jan 2006 15:25:10 -0700
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <0948395badaeef11aca65707e4ccd13d@cogdon.org>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
	<6dd0218e36b278f07d48bf29f1961508@cogdon.org>
	<abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>
	<0948395badaeef11aca65707e4ccd13d@cogdon.org>
Message-ID: <abb783b90601051425t775d9e68v1fa693b5afb3b61f@mail.gmail.com>

Thanks so much, I had missed the 'quality' attribute.  BTW, is
'ANTIALIAS' the best choice for what I want to do?  I noticed the
docs mention the following:

"The BILINEAR and BICUBIC filters use a fixed input environment, and
are best used for scale-preserving geometric transforms and upsamping"

which seems like it suits rescaling while maintaining aspect ratio as
I am doing.

On 1/5/06, Chris Cogdon <chris at cogdon.org> wrote:
>
> On Jan 5, 2006, at 12:17, Count L?szl? de Alm?sy wrote:
>
> > Thanks.  How about setting the JPEG compression setting?
> >
> > Conceptually what I'm trying to do is the following:
> >
> > Take an image file of arbitrary size and of arbitrary width and height,
> > and rescale it to a width of exactly 500 and a height of whatever,
> > as long as the aspect ratio is preserved.  Additionally, the rescaled
> > image must be < 100kb in size, but I want to preserve as much
> > quality as possible.  My thought was that if I could specify the
> > JPEG compression ratio as I can with ImageMagick, I could start
> > at a high value and iteratively go lower and lower until a rescaled
> > image file is produced that is just under 100kb size.
>
> The thumbnail command just creates the thumbnail image in memory, but
> doesn't 'compress' it yet. You do the compression when you save it as a
> particular format, and then you can set the compression. here's a more
> complete example:
>
> i = Image.open ( path )
> i.thumbnail ( (128,128), Image.ANTIALIAS )
> i.save ( thumb_path, quality=75 )
>
>
> --
>     ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
>      . . `; -._    )-;-,_`)
>     (v_,)'  _  )`-.\  ``-'
>    _.- _..-_/ / ((.'
> ((,.-'   ((,/   fL
>
>

From chris at cogdon.org  Thu Jan  5 23:28:31 2006
From: chris at cogdon.org (Chris Cogdon)
Date: Thu, 5 Jan 2006 14:28:31 -0800
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <abb783b90601051425t775d9e68v1fa693b5afb3b61f@mail.gmail.com>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
	<6dd0218e36b278f07d48bf29f1961508@cogdon.org>
	<abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>
	<0948395badaeef11aca65707e4ccd13d@cogdon.org>
	<abb783b90601051425t775d9e68v1fa693b5afb3b61f@mail.gmail.com>
Message-ID: <db5aa91e31436e3df5c807dcdaa850f1@cogdon.org>


On Jan 5, 2006, at 14:25, Count L?szl? de Alm?sy wrote:

> Thanks so much, I had missed the 'quality' attribute.  BTW, is
> 'ANTIALIAS' the best choice for what I want to do?  I noticed the
> docs mention the following:
>
> "The BILINEAR and BICUBIC filters use a fixed input environment, and
> are best used for scale-preserving geometric transforms and upsamping"
>
> which seems like it suits rescaling while maintaining aspect ratio as
> I am doing.

I've found that ANTIALIAS results in much better thumbnails, and will 
probably produce better looking results when scaling down. The others I 
suspect will work well when scaling up.

Best way... try it out and see :)


-- 
    ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
     . . `; -._    )-;-,_`)
    (v_,)'  _  )`-.\  ``-'
   _.- _..-_/ / ((.'
((,.-'   ((,/   fL


From calmasy at gmail.com  Thu Jan  5 23:35:45 2006
From: calmasy at gmail.com (=?ISO-8859-1?Q?Count_L=E1szl=F3_de_Alm=E1sy?=)
Date: Thu, 5 Jan 2006 15:35:45 -0700
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <db5aa91e31436e3df5c807dcdaa850f1@cogdon.org>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
	<6dd0218e36b278f07d48bf29f1961508@cogdon.org>
	<abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>
	<0948395badaeef11aca65707e4ccd13d@cogdon.org>
	<abb783b90601051425t775d9e68v1fa693b5afb3b61f@mail.gmail.com>
	<db5aa91e31436e3df5c807dcdaa850f1@cogdon.org>
Message-ID: <abb783b90601051435x1a2aa5acl4c23c30af0a35674@mail.gmail.com>

I'm actually using resize() instead of thumbnail() in the code I'm writing,
but I think the idea is the same, right?

I'm color blind, so it's not as easy for me as most to distinguish such
fine details by eye, but I think I'll use ANTIALIAS.

On 1/5/06, Chris Cogdon <chris at cogdon.org> wrote:
>
> On Jan 5, 2006, at 14:25, Count L?szl? de Alm?sy wrote:
>
> > Thanks so much, I had missed the 'quality' attribute.  BTW, is
> > 'ANTIALIAS' the best choice for what I want to do?  I noticed the
> > docs mention the following:
> >
> > "The BILINEAR and BICUBIC filters use a fixed input environment, and
> > are best used for scale-preserving geometric transforms and upsamping"
> >
> > which seems like it suits rescaling while maintaining aspect ratio as
> > I am doing.
>
> I've found that ANTIALIAS results in much better thumbnails, and will
> probably produce better looking results when scaling down. The others I
> suspect will work well when scaling up.
>
> Best way... try it out and see :)
>
>
> --
>     ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
>      . . `; -._    )-;-,_`)
>     (v_,)'  _  )`-.\  ``-'
>    _.- _..-_/ / ((.'
> ((,.-'   ((,/   fL
>
>

From chris at cogdon.org  Thu Jan  5 23:55:55 2006
From: chris at cogdon.org (Chris Cogdon)
Date: Thu, 5 Jan 2006 14:55:55 -0800
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <abb783b90601051435x1a2aa5acl4c23c30af0a35674@mail.gmail.com>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>
	<6dd0218e36b278f07d48bf29f1961508@cogdon.org>
	<abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>
	<0948395badaeef11aca65707e4ccd13d@cogdon.org>
	<abb783b90601051425t775d9e68v1fa693b5afb3b61f@mail.gmail.com>
	<db5aa91e31436e3df5c807dcdaa850f1@cogdon.org>
	<abb783b90601051435x1a2aa5acl4c23c30af0a35674@mail.gmail.com>
Message-ID: <a9ed173a6f3f16a9f6b7663dfef72aa0@cogdon.org>


On Jan 5, 2006, at 14:35, Count L?szl? de Alm?sy wrote:

> I'm actually using resize() instead of thumbnail() in the code I'm 
> writing,
> but I think the idea is the same, right?

yes. resize does much the same thing, but you have to control the new x 
and y values explicitly... you don't get the 'maintain geometry' that 
'thumbnail' gives you.


-- 
    ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
     . . `; -._    )-;-,_`)
    (v_,)'  _  )`-.\  ``-'
   _.- _..-_/ / ((.'
((,.-'   ((,/   fL


From kevin at cazabon.com  Fri Jan  6 08:21:39 2006
From: kevin at cazabon.com (kevin at cazabon.com)
Date: Fri, 6 Jan 2006 08:21:39 +0100
Subject: [Image-SIG] PIL resize with aspect ratio?
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com><6dd0218e36b278f07d48bf29f1961508@cogdon.org><abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com><0948395badaeef11aca65707e4ccd13d@cogdon.org><abb783b90601051425t775d9e68v1fa693b5afb3b61f@mail.gmail.com><db5aa91e31436e3df5c807dcdaa850f1@cogdon.org>
	<abb783b90601051435x1a2aa5acl4c23c30af0a35674@mail.gmail.com>
Message-ID: <004401c61291$d64100e0$650aa8c0@duallie>

Here's a quick-and-dirty function to do the same.  The difference is that
Thumbnail modifies the image in place, while this returns a new image.
There is also the "fit" function in the ImageChops module that is a LOT more
detailed.

def maxSize(image, maxSize, method = 3):
    """ im = maxSize(im, (maxSizeX, maxSizeY), method = Image.BICUBIC)

    Resizes a PIL image to a maximum size specified while maintaining
    the aspect ratio of the image.  Similar to Image.thumbnail(), but allows
    usage of different resizing methods and does NOT modify the image in
place."""

    imAspect = float(image.size[0])/float(image.size[1])
    outAspect = float(maxSize[0])/float(maxSize[1])

    if imAspect >= outAspect:
        #set to maxWidth x maxWidth/imAspect
        return image.resize((maxSize[0], int((float(maxSize[0])/imAspect) +
0.5)), method)
    else:
        #set to maxHeight*imAspect x maxHeight
        return image.resize((int((float(maxSize[1])*imAspect) + 0.5),
maxSize[1]), method)

Kevin.
----- Original Message ----- 
From: "Count L?szl? de Alm?sy" <calmasy at gmail.com>
To: "Chris Cogdon" <chris at cogdon.org>
Cc: <image-sig at python.org>
Sent: Thursday, January 05, 2006 11:35 PM
Subject: Re: [Image-SIG] PIL resize with aspect ratio?


I'm actually using resize() instead of thumbnail() in the code I'm writing,
but I think the idea is the same, right?

I'm color blind, so it's not as easy for me as most to distinguish such
fine details by eye, but I think I'll use ANTIALIAS.

On 1/5/06, Chris Cogdon <chris at cogdon.org> wrote:
>
> On Jan 5, 2006, at 14:25, Count L?szl? de Alm?sy wrote:
>
> > Thanks so much, I had missed the 'quality' attribute.  BTW, is
> > 'ANTIALIAS' the best choice for what I want to do?  I noticed the
> > docs mention the following:
> >
> > "The BILINEAR and BICUBIC filters use a fixed input environment, and
> > are best used for scale-preserving geometric transforms and upsamping"
> >
> > which seems like it suits rescaling while maintaining aspect ratio as
> > I am doing.
>
> I've found that ANTIALIAS results in much better thumbnails, and will
> probably produce better looking results when scaling down. The others I
> suspect will work well when scaling up.
>
> Best way... try it out and see :)
>
>
> --
>     ("`-/")_.-'"``-._        Chris Cogdon <chris at cogdon.org>
>      . . `; -._    )-;-,_`)
>     (v_,)'  _  )`-.\  ``-'
>    _.- _..-_/ / ((.'
> ((,.-'   ((,/   fL
>
>
_______________________________________________
Image-SIG maillist  -  Image-SIG at python.org
http://mail.python.org/mailman/listinfo/image-sig





From steve at holdenweb.com  Fri Jan  6 08:25:03 2006
From: steve at holdenweb.com (Steve Holden)
Date: Fri, 06 Jan 2006 07:25:03 +0000
Subject: [Image-SIG] PIL resize with aspect ratio?
In-Reply-To: <abb783b90601051425q75621470v263261f9b6452625@mail.gmail.com>
References: <abb783b90601051149n44c7627at8d3948059ca8e57a@mail.gmail.com>	
	<6dd0218e36b278f07d48bf29f1961508@cogdon.org>	
	<abb783b90601051217w76f616eeo70aba6aa1a970a2c@mail.gmail.com>	
	<43BD8D6E.10909@holdenweb.com>
	<abb783b90601051425q75621470v263261f9b6452625@mail.gmail.com>
Message-ID: <43BE1B4F.9030207@holdenweb.com>

Count L?szl? de Alm?sy wrote:
> Wonderful, thank-you, I adapted this to work for me.
> 
> On 1/5/06, Steve Holden <steve at holdenweb.com> wrote:
> 
>>Count L?szl? de Alm?sy wrote:
>>
>>>Thanks.  How about setting the JPEG compression setting?
>>>
>>>Conceptually what I'm trying to do is the following:
>>>
>>>Take an image file of arbitrary size and of arbitrary width and height,
>>>and rescale it to a width of exactly 500 and a height of whatever,
>>>as long as the aspect ratio is preserved.  Additionally, the rescaled
>>>image must be < 100kb in size, but I want to preserve as much
>>>quality as possible.  My thought was that if I could specify the
>>>JPEG compression ratio as I can with ImageMagick, I could start
>>>at a high value and iteratively go lower and lower until a rescaled
>>>image file is produced that is just under 100kb size.
>>>
>>
>>The scaling is relatively easy; here's a piece of code I use to ensure
>>that an image is at most 120 pixels wide:
>>
>>             im = Image.open(c)
>>             w, h = im.size
>>             if w > 120:
>>                 sf = 120.0/w
>>                 newsize = (120, int(h*sf))
>>                 im = im.resize(newsize)
>>
>>you can see I compute a scaling factor that will reduce the width to 120
>>pixels, and apply the same factor to both dimensions. Your code can be
>>similar.
>>
>>As far as the jpeg compression goes, you can use a "quality" keyword
>>argument to the image.save() operation to specify othe compression
>>ratio. I believe it can take values from 1 (worst) to 100 (best) and
>>defaults to 75. Hope this gives you enough to play with.
>>
>>regards
>>  Steve

Glad it worked out for you. Sorry I replied to you rather than the list.

regards
  Steve
-- 
Steve Holden       +44 150 684 7255  +1 800 494 3119
Holden Web LLC                     www.holdenweb.com
PyCon TX 2006                  www.python.org/pycon/

From desai.suhas at gmail.com  Sat Jan  7 09:05:26 2006
From: desai.suhas at gmail.com (Suhas Desai)
Date: Sat, 7 Jan 2006 13:35:26 +0530
Subject: [Image-SIG] Couldn't import image library
Message-ID: <ceb726b50601070005i544c15elaf9f5b0977db69fa@mail.gmail.com>

Hi
      I am newbie in PIL progmming,I hv installed pil 1.1.5 on python
2.2 but unable to import image libray.
     I Hv tried
                    installed pil 1.1.5
                    python setup.py build_ext -i
                    python selftest.py
         and tried for import image
      it gives error for no module found.
     PLease help me.
     Thanks in advance.
--
Thanks and Regards,
Suhas Desai
Department of Computer Science and Engg
Walchand CE,Sangli,MS
INDIA-416415.
Mobile: 093711 27676

From Richard.Madden at USherbrooke.ca  Sat Jan  7 15:19:40 2006
From: Richard.Madden at USherbrooke.ca (Richard Madden)
Date: Sat, 07 Jan 2006 09:19:40 -0500
Subject: [Image-SIG] Image-SIG Digest, Vol 33, Issue 5
In-Reply-To: <mailman.2.1136631602.15657.image-sig@python.org>
References: <mailman.2.1136631602.15657.image-sig@python.org>
Message-ID: <43BFCDFC.2010105@USherbrooke.ca>

image-sig-request at python.org wrote:

>Send Image-SIG mailing list submissions to
>	image-sig at python.org
>
>To subscribe or unsubscribe via the World Wide Web, visit
>	http://mail.python.org/mailman/listinfo/image-sig
>or, via email, send a message with subject or body 'help' to
>	image-sig-request at python.org
>
>You can reach the person managing the list at
>	image-sig-owner at python.org
>
>When replying, please edit your Subject line so it is more specific
>than "Re: Contents of Image-SIG digest..."
>  
>
>------------------------------------------------------------------------
>
>Today's Topics:
>
>   1. Couldn't import image library (Suhas Desai)
>  
>
>
> ------------------------------------------------------------------------
>
> Subject:
> [Image-SIG] Couldn't import image library
> From:
> Suhas Desai <desai.suhas at gmail.com>
> Date:
> Sat, 7 Jan 2006 13:35:26 +0530
> To:
> image-sig at python.org
>
> To:
> image-sig at python.org
>
>
>Hi
>      I am newbie in PIL progmming,I hv installed pil 1.1.5 on python
>2.2 but unable to import image libray.
>     I Hv tried
>                    installed pil 1.1.5
>                    python setup.py build_ext -i
>                    python selftest.py
>         and tried for import image
>      it gives error for no module found.
>     PLease help me.
>     Thanks in advance.
>--
>Thanks and Regards,
>Suhas Desai
>Department of Computer Science and Engg
>Walchand CE,Sangli,MS
>INDIA-416415.
>Mobile: 093711 27676
>
>  
>
Try "import Image" with an upper case I.

Best, Dick

From sydow at ncst.nrl.navy.mil  Mon Jan  9 23:59:52 2006
From: sydow at ncst.nrl.navy.mil (Eric Sydow)
Date: Mon, 09 Jan 2006 17:59:52 -0500
Subject: [Image-SIG] PIL Installation problem
Message-ID: <1136847592.10799.17.camel@sydow.nrl.navy.mil>

Redhat WS Linux, PIL 1.1.5, python2.3 

Hung up because I had tk rpm package installed but not tk-devel package.
Thus sys libs installed for tk but not include files, static lib, etc.
Since setup.py could import _tkinter and found the sys libs it went
ahead and tried to build, then gcc choked when it couldn't find tk.h.

I manually blocked the setup.py from adding the tk extension for now,
but it seems to make sense in setup.py to ensure that tk.h exists (good
litmus test to see if whole developer infrastructure is there).

Seem like a worthwhile change?  Want a patch?  Just ask.

Thanks,
Eric

-- 
Eric Sydow <sydow at ncst.nrl.navy.mil>


From stuart.white1 at gmail.com  Fri Jan 13 19:59:22 2006
From: stuart.white1 at gmail.com (Stuart White)
Date: Fri, 13 Jan 2006 12:59:22 -0600
Subject: [Image-SIG] Retrieve a GIF's palette entries using Python Imaging
	Library (PIL)
Message-ID: <4af5cd780601131059k91f70f2ted6414b58a1a6786@mail.gmail.com>

I am using the Python Imaging Library (PIL) to process GIF images. I
need to be able to retrieve the RGB values for each color palette entry.

I see that the 'Image' class has a 'palette' attribute which returns an
object of type 'ImagePalette'.  However, the documentation is a bit
lacking regarding how to maniuplate the ImagePalette class to retrieve
the palette entries' RGB values.  Can anyone point me to a short example?

Thanks!

From carroll at tjc.com  Fri Jan 13 23:30:42 2006
From: carroll at tjc.com (Terry Carroll)
Date: Fri, 13 Jan 2006 14:30:42 -0800 (PST)
Subject: [Image-SIG] Retrieve a GIF's palette entries using Python
 Imaging Library (PIL)
In-Reply-To: <4af5cd780601131059k91f70f2ted6414b58a1a6786@mail.gmail.com>
Message-ID: <Pine.LNX.4.44.0601131428500.21758-100000@violet.rahul.net>

On Fri, 13 Jan 2006, Stuart White wrote:

> I am using the Python Imaging Library (PIL) to process GIF images. I
> need to be able to retrieve the RGB values for each color palette entry.
> 
> I see that the 'Image' class has a 'palette' attribute which returns an
> object of type 'ImagePalette'.  However, the documentation is a bit
> lacking regarding how to maniuplate the ImagePalette class to retrieve
> the palette entries' RGB values.  Can anyone point me to a short example?

There was a very helpful discussion on this topic on Python-tutor last 
summer.  Check out the thread "PIL's palette" at this URL:

http://mail.python.org/pipermail/tutor/2005-July/thread.html#39719


From stuart.white1 at gmail.com  Sat Jan 14 04:52:06 2006
From: stuart.white1 at gmail.com (Stuart White)
Date: Fri, 13 Jan 2006 21:52:06 -0600
Subject: [Image-SIG] Retrieve a GIF's palette entries using Python
	Imaging Library (PIL)
In-Reply-To: <Pine.LNX.4.44.0601131428500.21758-100000@violet.rahul.net>
References: <4af5cd780601131059k91f70f2ted6414b58a1a6786@mail.gmail.com>
	<Pine.LNX.4.44.0601131428500.21758-100000@violet.rahul.net>
Message-ID: <4af5cd780601131952ua2767cflfae9c1a3d7db4a01@mail.gmail.com>

Thank you for posting this response.  It is indeed a thorough
discussion of what a palette is and how to set it.

I'm looking for a way to *retrieve* an image's palette (without
modifying it in any way).  So, I definitely don't want to use
putpalette().  A "palette" attribute exists in the "Image" class that
returns an object of type "ImagePalette", but for the life of me, I
can't figure out how to use this object to retrieve the image's
palette RGB values.  And I can't seem to find anything by Googling
either.

On 1/13/06, Terry Carroll <carroll at tjc.com> wrote:
> On Fri, 13 Jan 2006, Stuart White wrote:
>
> > I am using the Python Imaging Library (PIL) to process GIF images. I
> > need to be able to retrieve the RGB values for each color palette entry.
> >
> > I see that the 'Image' class has a 'palette' attribute which returns an
> > object of type 'ImagePalette'.  However, the documentation is a bit
> > lacking regarding how to maniuplate the ImagePalette class to retrieve
> > the palette entries' RGB values.  Can anyone point me to a short example?
>
> There was a very helpful discussion on this topic on Python-tutor last
> summer.  Check out the thread "PIL's palette" at this URL:
>
> http://mail.python.org/pipermail/tutor/2005-July/thread.html#39719
>
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig
>

From stuart.white1 at gmail.com  Sat Jan 14 05:26:48 2006
From: stuart.white1 at gmail.com (Stuart White)
Date: Fri, 13 Jan 2006 22:26:48 -0600
Subject: [Image-SIG] Retrieve a GIF's palette entries using Python
	Imaging Library (PIL)
In-Reply-To: <4af5cd780601131952ua2767cflfae9c1a3d7db4a01@mail.gmail.com>
References: <4af5cd780601131059k91f70f2ted6414b58a1a6786@mail.gmail.com>
	<Pine.LNX.4.44.0601131428500.21758-100000@violet.rahul.net>
	<4af5cd780601131952ua2767cflfae9c1a3d7db4a01@mail.gmail.com>
Message-ID: <4af5cd780601132026h74ed9b9ek65f7c5681e985459@mail.gmail.com>

I''ll answer my own question.  Here's what I was looking for:

   lut = im.resize((256, 1))
   lut.putdata(range(256))
   lut = list(lut.convert("RGB").getdata())
   print lut


On 1/13/06, Stuart White <stuart.white1 at gmail.com> wrote:
> Thank you for posting this response.  It is indeed a thorough
> discussion of what a palette is and how to set it.
>
> I'm looking for a way to *retrieve* an image's palette (without
> modifying it in any way).  So, I definitely don't want to use
> putpalette().  A "palette" attribute exists in the "Image" class that
> returns an object of type "ImagePalette", but for the life of me, I
> can't figure out how to use this object to retrieve the image's
> palette RGB values.  And I can't seem to find anything by Googling
> either.
>
> On 1/13/06, Terry Carroll <carroll at tjc.com> wrote:
> > On Fri, 13 Jan 2006, Stuart White wrote:
> >
> > > I am using the Python Imaging Library (PIL) to process GIF images. I
> > > need to be able to retrieve the RGB values for each color palette entry.
> > >
> > > I see that the 'Image' class has a 'palette' attribute which returns an
> > > object of type 'ImagePalette'.  However, the documentation is a bit
> > > lacking regarding how to maniuplate the ImagePalette class to retrieve
> > > the palette entries' RGB values.  Can anyone point me to a short example?
> >
> > There was a very helpful discussion on this topic on Python-tutor last
> > summer.  Check out the thread "PIL's palette" at this URL:
> >
> > http://mail.python.org/pipermail/tutor/2005-July/thread.html#39719
> >
> > _______________________________________________
> > Image-SIG maillist  -  Image-SIG at python.org
> > http://mail.python.org/mailman/listinfo/image-sig
> >
>

From ayuda-admin at linux.org.mx  Sat Jan 14 20:22:30 2006
From: ayuda-admin at linux.org.mx (ayuda-admin at linux.org.mx)
Date: Sat, 14 Jan 2006 13:22:30 -0600
Subject: [Image-SIG] Your message to Ayuda awaits moderator approval
Message-ID: <20060114192230.3215.36073.Mailman@pegaso.fisica.unam.mx>

Your mail to 'Ayuda' with the subject

    Returned mail: see transcript for details

Is being held until the list moderator can review it for approval.

The reason it is being held:

    Post by non-member to a members-only list

Either the message will get posted to the list, or you will receive
notification of the moderator's decision.

From davis87 at purdue.edu  Wed Jan 18 21:56:09 2006
From: davis87 at purdue.edu (Anne Davis)
Date: Wed, 18 Jan 2006 15:56:09 -0500
Subject: [Image-SIG] Image Problems
Message-ID: <001201c61c71$9bf45100$6501a8c0@Anne1>

Special Interest Group Members,

I am a student at Purdue University.  Myself and two other students are 
working on our senior design project and we have hit a snag when trying to 
import and view an image file.  The file is a multi-slide picture from a CAT 
scan machine.  For our project we need to be able to view the slides and 
also change the grey-scale information into a data range.

We do know that the file type is not a built-in PIL format.  We know the 
slide resolutions (512x512), there are 143 slides, the bytes per pixel (16 
bytes), the gap between slides (0 bytes), and that it's a 16 bit unsigned 
little endian format.

Is there a way that we can get Python to import this file and be able to 
view the slices by using a scroll button or the arrow keys?  Or should we be 
looking into another imaging program that already has this capability?

Thanks for the time,

Anne Davis
Purdue University School of
Nuclear Engineering
davis87 at purdue.edu 


From dima at shiftingplanes.org  Thu Jan 19 02:57:48 2006
From: dima at shiftingplanes.org (Dmitry (Dima) Strakovsky)
Date: Wed, 18 Jan 2006 19:57:48 -0600
Subject: [Image-SIG] Image Problems
In-Reply-To: <000801c61c8c$7a711bb0$6501a8c0@Anne1>
References: <001201c61c71$9bf45100$6501a8c0@Anne1>
	<43CED643.7060100@shiftingplanes.org>
	<000801c61c8c$7a711bb0$6501a8c0@Anne1>
Message-ID: <43CEF21C.8010405@shiftingplanes.org>

I looked at:

http://www.wotsit.org/
and through imagemagick formats listing and couldn't find it

Can the program that generated this file export other formats (even if 
it's just a list of files instead of a single file animation)? Do you 
have a detailed description of the format? like if you inhale the 
header, can you make out what's going on?

d

Anne Davis wrote:

> The file is TzIMG file format.
>
> Anne Davis
> Purdue University School of
> Nuclear Engineering
> (574) 850-4171
> davis87 at purdue.edu
>
>


-- 
<name>Dmitry (Dima) Strakovsky</name>
<email>dima at shiftingplanes.org</email>
<website>www.shiftingplanes.org</website>


From michele.petrazzo at unipex.it  Thu Jan 19 09:56:04 2006
From: michele.petrazzo at unipex.it (Michele Petrazzo)
Date: Thu, 19 Jan 2006 09:56:04 +0100
Subject: [Image-SIG] Image Problems
In-Reply-To: <001201c61c71$9bf45100$6501a8c0@Anne1>
References: <001201c61c71$9bf45100$6501a8c0@Anne1>
Message-ID: <43CF5424.7050908@unipex.it>

Anne Davis wrote:
> Special Interest Group Members,
> 
> I am a student at Purdue University.  Myself and two other students
> are working on our senior design project and we have hit a snag when
> trying to import and view an image file.  The file is a multi-slide
> picture from a CAT scan machine.  For our project we need to be able
> to view the slides and also change the grey-scale information into a
> data range.
> 
> We do know that the file type is not a built-in PIL format.  We know
> the slide resolutions (512x512), there are 143 slides, the bytes per
> pixel (16 bytes), the gap between slides (0 bytes), and that it's a
> 16 bit unsigned little endian format.
> 
> Is there a way that we can get Python to import this file and be able
> to view the slices by using a scroll button or the arrow keys?  Or
> should we be looking into another imaging program that already has
> this capability?

You need a "complete" (not so difficult to create) application and a
library that read your 16 bit gray images.
You can use one of the graphical library that python has, like wxpython
or gtk for show the images and a image library for read and convert it.
Like other user say, you can use imagemagick or freeimagepy (google for
both).
However, for create the GUI, I think that with about 100 lines you can
create it! If you want to use wxpython, come into the wxpython mailing
list where you can find a lot of advice!

P.s. Are the image into a multi-page format (tif) ?

Michele


From fredrik at pythonware.com  Thu Jan 19 15:04:46 2006
From: fredrik at pythonware.com (Fredrik Lundh)
Date: Thu, 19 Jan 2006 15:04:46 +0100
Subject: [Image-SIG] Image Problems
References: <001201c61c71$9bf45100$6501a8c0@Anne1>
Message-ID: <dqo69u$vs2$1@sea.gmane.org>

Anne Davis wrote:

> We do know that the file type is not a built-in PIL format.  We know the
> slide resolutions (512x512), there are 143 slides, the bytes per pixel (16
> bytes), the gap between slides (0 bytes), and that it's a 16 bit unsigned
> little endian format.

16 bytes per pixel ?

how big is that 143-slide file?  If it's not compressed, and you meant 16 bits
rather than 16 bytes, the file should be ~75 megabyte, and you should be able
to use PIL's fromstring (or frombuffer) API to read the file.

If you really meant 16 bytes, and the file is ~600 megabyte, things might be a
bit trickier, but it might be solvable.

However, if the file is compressed, we need a spec.

</F> 




From bbaxter at wadsworth.org  Thu Jan 19 16:13:51 2006
From: bbaxter at wadsworth.org (William Baxter)
Date: Thu, 19 Jan 2006 10:13:51 -0500
Subject: [Image-SIG] Image Problems
References: <001201c61c71$9bf45100$6501a8c0@Anne1>
Message-ID: <43CFACAF.A7B5EFBD@wadsworth.org>

I also had to write Python code to import a custom format into PIL, for
the SPIDER image processing system
(www.wadsworth.org/spider_doc/spider/docs/spider.html). Perhaps my
experience can give you some pointers.

First, remember that image processing is distinct from display. PIL can
apply operations to your data (change the grey-scale information), but
you'll need a graphical library, like Tkinter or wxPython, to create a
display GUI (e.g., view the slices by using a scroll button or the arrow
keys).

To import images into PIL, see "Writing Your Own File Decoder"
(www.pythonware.com/library/pil/handbook/decoder.htm). You'll write
something with a name like PurdueCATImagePlugin.py, which will go into
the python/site-packages/PIL  directory, and import this, along with
Image, into Python. See the other xxxPlugin.py files in the PIL
directory for more examples.

To write your own Plugin.py, the first step is to know how the header
(if any) is structured so you can find where the data starts in the
file. Your data takes up 74973184 bytes (512x512x143x2). If this is the
size of the file, then there is no header, and you can try to read in
the raw data. If your file is larger than this, then the header should
be headerbytes = (filesize - 74973184) bytes. Try skipping headerbytes
into the file and reading the raw data. If it's anything more
complicated than this, then you'll need to get as much information as
you can from the CAT scanner documentation about its output format. 

Good luck!

Bill Baxter
Wadsworth Center
Empire State Plaza, PO Box 509
Albany, NY 12201-0509

Anne Davis wrote:
> 
> Special Interest Group Members,
> 
> I am a student at Purdue University.  Myself and two other students are
> working on our senior design project and we have hit a snag when trying to
> import and view an image file.  The file is a multi-slide picture from a CAT
> scan machine.  For our project we need to be able to view the slides and
> also change the grey-scale information into a data range.
> 
> We do know that the file type is not a built-in PIL format.  We know the
> slide resolutions (512x512), there are 143 slides, the bytes per pixel (16
> bytes), the gap between slides (0 bytes), and that it's a 16 bit unsigned
> little endian format.
> 
> Is there a way that we can get Python to import this file and be able to
> view the slices by using a scroll button or the arrow keys?  Or should we be
> looking into another imaging program that already has this capability?
> 
> Thanks for the time,
> 
> Anne Davis
> Purdue University School of
> Nuclear Engineering
> davis87 at purdue.edu
> 
> _______________________________________________
> Image-SIG maillist  -  Image-SIG at python.org
> http://mail.python.org/mailman/listinfo/image-sig

From michele.petrazzo at unipex.it  Fri Jan 20 16:29:18 2006
From: michele.petrazzo at unipex.it (Michele Petrazzo)
Date: Fri, 20 Jan 2006 16:29:18 +0100
Subject: [Image-SIG] [ANN] FreeImagePy 1.2.0
Message-ID: <43D101CE.7050400@unipex.it>

FreeImagePy 1.2.0 is available at freeimagepy.sf.net

What is?
  It' a python wrapper for FreeImage, Open Source library for developers
   who would like to support popular graphics image formats.

How work?
  It use a binary freeimage library present on the system and ctypes.

Major changes from 1.1.0:
  Start the port to a more pythonic interface. See Image class
  documentation (or the examples)
  A bug in *nix mode that cause a problem when getStatus are called

Michele Petrazzo

From aharrin at luc.edu  Fri Jan 20 17:49:12 2006
From: aharrin at luc.edu (Andrew Harrington)
Date: Fri, 20 Jan 2006 10:49:12 -0600
Subject: [Image-SIG] documentation error and feature request
Message-ID: <43D11488.2010407@luc.edu>

A documentation error and suggestion for pildriver:

The online pildriver documentation
http://www.pythonware.com/library/pil/handbook/pildriver.htm
omits the float parameter in the sharpness method description, and I 
would guess there are similar issues in lighten and others.

A feature request:
Currently you can resize to specific dimensions in pildriver.  I 
frequently want a half size picture, whatever the original size.   It 
would be good to be able to scale an image by a factor.  That could be 
done directly with a variation on resize or an operator on a size pair

scaleby <float:factor> <int:x> <int:y>
which produces the dimensions scaled by factor and rounded and converted 
back to int's

Thanks!  I love PIL.

-- 
  Andrew N. Harrington
  Computer Science Department      Undergraduate Program Director
  Loyola University Chicago        http://www.cs.luc.edu/~anh
  512B Lewis Towers (office)       Office Phone: 312-915-7982
  Snail mail to Lewis Towers 416   Dept. Fax:    312-915-7998
  820 North Michigan Avenue        aharrin at luc.edu
  Chicago, Illinois 60611          


From davidrushby at yahoo.com  Tue Jan 24 01:21:00 2006
From: davidrushby at yahoo.com (David Rushby)
Date: Mon, 23 Jan 2006 16:21:00 -0800 (PST)
Subject: [Image-SIG] Image.point breakage in PIL 1.1.5?
Message-ID: <20060124002100.37734.qmail@web30009.mail.mud.yahoo.com>

I have some code that uses the Image.point() method to filter pixels in
black-and-white images.

I'm using Python 2.3.5 on Windows 2000, and when I tried to upgrade
from PIL 1.1.4 to 1.1.5, the code stopped working.  Now it raises an
error like this:
------------------------------------------------------------------------
Traceback (most recent call last):
  File "test2.py", line 4, in ?
    i2 = i1.point(lambda p: (p > 20 and p) or 0)
  File "C:\dev\python\core\Lib\site-packages\PIL\Image.py", line 1039,
in point
    lut = map(lut, range(256)) * self.im.bands
AttributeError: 'NoneType' object has no attribute 'bands'
------------------------------------------------------------------------

If you take the image file at
http://kinterbasdb.sourceforge.net/other/temp/test2.bmp and apply the
following code to it, you'll see the error:
------------------------------------------------------------------------
from PIL import Image
i1 = Image.open('test2.bmp')
i2 = i1.point(lambda p: (p > 20 and p) or 0)
------------------------------------------------------------------------

This works fine with PIL 1.1.4, but not 1.1.5.  Is my code in error, or
is there a bug in PIL 1.1.5?

Thanks.

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

From fredrik at pythonware.com  Fri Jan 27 15:53:27 2006
From: fredrik at pythonware.com (Fredrik Lundh)
Date: Fri, 27 Jan 2006 15:53:27 +0100
Subject: [Image-SIG] Image.point breakage in PIL 1.1.5?
References: <20060124002100.37734.qmail@web30009.mail.mud.yahoo.com>
Message-ID: <drdc57$84t$1@sea.gmane.org>

David Rushby wrote:

>I have some code that uses the Image.point() method to filter pixels in
> black-and-white images.
>
> I'm using Python 2.3.5 on Windows 2000, and when I tried to upgrade
> from PIL 1.1.4 to 1.1.5, the code stopped working.  Now it raises an
> error like this:
> ------------------------------------------------------------------------
> Traceback (most recent call last):
>  File "test2.py", line 4, in ?
>    i2 = i1.point(lambda p: (p > 20 and p) or 0)
>  File "C:\dev\python\core\Lib\site-packages\PIL\Image.py", line 1039,
> in point
>    lut = map(lut, range(256)) * self.im.bands
> AttributeError: 'NoneType' object has no attribute 'bands'
> ------------------------------------------------------------------------
>
> If you take the image file at
> http://kinterbasdb.sourceforge.net/other/temp/test2.bmp and apply the
> following code to it, you'll see the error:
> ------------------------------------------------------------------------
> from PIL import Image
> i1 = Image.open('test2.bmp')
> i2 = i1.point(lambda p: (p > 20 and p) or 0)
> ------------------------------------------------------------------------
>
> This works fine with PIL 1.1.4, but not 1.1.5.  Is my code in error, or
> is there a bug in PIL 1.1.5?

it's a bug in PIL (it's fixed in 1.1.6, but I didn't know that it worked in 1.1.4).

here's a workaround:

    from PIL import Image
    i1 = Image.open('test2.bmp')
    i1.load() # <-- use explicit load
    i2 = i1.point(lambda p: (p > 20 and p) or 0)

</F> 




From davidrushby at yahoo.com  Fri Jan 27 16:07:02 2006
From: davidrushby at yahoo.com (David Rushby)
Date: Fri, 27 Jan 2006 07:07:02 -0800 (PST)
Subject: [Image-SIG] Image.point breakage in PIL 1.1.5?
In-Reply-To: <drdc57$84t$1@sea.gmane.org>
Message-ID: <20060127150702.17064.qmail@web30006.mail.mud.yahoo.com>

--- Fredrik Lundh <fredrik at pythonware.com> wrote:
> it's a bug in PIL (it's fixed in 1.1.6, but I didn't know that it
> worked in 1.1.4).
> 
> here's a workaround...

Thanks, Fredrik!

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

From bernd at prager.ws  Mon Jan 30 21:09:10 2006
From: bernd at prager.ws (Bernd Prager)
Date: Mon, 30 Jan 2006 15:09:10 -0500 (EST)
Subject: [Image-SIG] OleFileIO.py still maintained?
Message-ID: <45450.198.45.19.20.1138651750.squirrel@mail.prager.ws>

I'm trying to extract pictures from Outlook attachments and thought to
give OleFileIO.py a shot. With PIL-1.1.5 for Python2.4 on Windows I
unfortunately run into strange errors. When I try to load the message file
I get:

File "C:\bin\Python24\Lib\site-packages\PIL\OleFileIO.py", line 103, in
__init__
    data.append(fp.read(sectorsize))
AttributeError: 'str' object has no attribute 'append'

It's the init in class _OleStream(StringIO.StringIO).

Any ideas what's wrong?

Thanks a lot,
-- Bernd


From winfried.diehm at online.de  Tue Jan 31 18:19:37 2006
From: winfried.diehm at online.de (Winfried Diehm)
Date: Tue, 31 Jan 2006 18:19:37 +0100
Subject: [Image-SIG] how to get exif information
Message-ID: <200601311819.38035.winfried.diehm@online.de>

Dear SIG members
got pil 1.1.5 installed and running.
Want to get exif information from jpeg-images. When I open an image, the image 
has a method info. This method returns a dict with one key. The value is a 
string with 14403 characters. For example:
>>> im.info.keys()
['exif']
>>> im.info["exif"][0:20]
'Exif\x00\x00II*\x00\x08\x00\x00\x00\x0b\x00\x0e\x01\x02\x00'
How can I get the exif information (human readable;-) out of the string ?

Thanks
Winfried

From fredrik at pythonware.com  Tue Jan 31 23:03:59 2006
From: fredrik at pythonware.com (Fredrik Lundh)
Date: Tue, 31 Jan 2006 23:03:59 +0100
Subject: [Image-SIG] how to get exif information
References: <200601311819.38035.winfried.diehm@online.de>
Message-ID: <dromsh$al4$1@sea.gmane.org>

Winfried Diehm wrote:

> got pil 1.1.5 installed and running.
> Want to get exif information from jpeg-images. When I open an image, the image
> has a method info. This method returns a dict with one key. The value is a
> string with 14403 characters. For example:
> >>> im.info.keys()
> ['exif']
> >>> im.info["exif"][0:20]
> 'Exif\x00\x00II*\x00\x08\x00\x00\x00\x0b\x00\x0e\x01\x02\x00'
> How can I get the exif information (human readable;-) out of the string ?

try calling the _getexif() method on the im object.  if successful, this
method returns a dictionary mapping exif tags to corresponding values.

(the ExifTags module contains a dictionary mapping tag values to tag
names).

for a little more information, and some useful links, see this post:

    http://mail.python.org/pipermail/image-sig/2005-July/003427.html

</F>




From carroll at tjc.com  Tue Jan 31 23:41:20 2006
From: carroll at tjc.com (Terry Carroll)
Date: Tue, 31 Jan 2006 14:41:20 -0800 (PST)
Subject: [Image-SIG] how to get exif information
In-Reply-To: <200601311819.38035.winfried.diehm@online.de>
Message-ID: <Pine.LNX.4.44.0601311440110.13295-100000@violet.rahul.net>

On Tue, 31 Jan 2006, Winfried Diehm wrote:

> got pil 1.1.5 installed and running.
> Want to get exif information from jpeg-images. 

In an app I wrote before PIL had EXIF support, I was using Gene Cash's 
EXIF.py at http://home.cfl.rr.com/genecash/digital_camera.html .   You 
might still find it helpful.


From ken at sparklight.com  Fri Jan 13 21:04:44 2006
From: ken at sparklight.com (Ken Brooks)
Date: Fri, 13 Jan 2006 20:04:44 -0000
Subject: [Image-SIG] Trouble installing PIL package
Message-ID: <p06020407bfedb68b9536@[10.1.1.116]>

OS:  MacOS 10.4.4
System: 1GHz / 1GB RAM
Python: 2.3.5

Using MacPython's PackageManager to install PIL, came to following 
problem (at end of quoted text):

--------------------------------------------------------------------
PIL 1.1.5 BUILD SUMMARY
--------------------------------------------------------------------
version       1.1.5
platform      darwin 2.3.5 (#1, Mar 20 2005, 20:38:20)
               [GCC 3.3 20030304 (Apple Computer, Inc. build 1809)]
--------------------------------------------------------------------
--- TKINTER support ok
--- JPEG support ok
--- ZLIB (PNG/ZIP) support ok
*** FREETYPE2 support not available
--------------------------------------------------------------------
To add a missing option, make sure you have the required
library, and set the corresponding ROOT variable in the
setup.py script.

To check the build, run the selftest.py script.
running build_scripts
creating build/scripts-2.3
copying and adjusting Scripts/pilconvert.py -> build/scripts-2.3
copying and adjusting Scripts/pildriver.py -> build/scripts-2.3
copying and adjusting Scripts/pilfile.py -> build/scripts-2.3
copying Scripts/pilfont.py -> build/scripts-2.3
copying and adjusting Scripts/pilprint.py -> build/scripts-2.3
changing mode of build/scripts-2.3/pilconvert.py from 644 to 755
changing mode of build/scripts-2.3/pildriver.py from 644 to 755
changing mode of build/scripts-2.3/pilfile.py from 644 to 755
changing mode of build/scripts-2.3/pilfont.py from 664 to 775
changing mode of build/scripts-2.3/pilprint.py from 644 to 755
running install_lib
copying build/lib.darwin-8.4.0-Power_Macintosh-2.3/_imaging.so -> 
/System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages/PIL
copying build/lib.darwin-8.4.0-Power_Macintosh-2.3/_imagingtk.so -> 
/System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site-packages/PIL
running install_scripts
copying build/scripts-2.3/pilconvert.py -> 
/System/Library/Frameworks/Python.framework/Versions/2.3/bin
error: 
/System/Library/Frameworks/Python.framework/Versions/2.3/bin/pilconvert.py: 
Permission denied
install PIL-1.1.5-source: running 
""/Applications/MacPython-2.3/PackageManager.app/Contents/MacOS/Python" 
setup.py install " failed

It really did fail:  when I try PIL's selftest.py, it says,
	*** The _imaging C module is not installed

If it was just a matter of copying files, I would use sudo and do it 
myself - but I've searched that setup.py script and I can't even find 
in it where the copy commands are being issued!

I also tried downloading PIL separately and saying:
	sudo python setup.py install
which got farther but still doesn't pass the selftest check.

Help??

Ken Brooks
Sparkling Light Software
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From adrian at haqa.co.uk  Thu Jan 19 21:42:03 2006
From: adrian at haqa.co.uk (Adrian Hungate)
Date: Thu, 19 Jan 2006 20:42:03 -0000
Subject: [Image-SIG] Patch to Imaging-1.1.5 to allow bdist_rpm
Message-ID: <00ed01c61d35$5a6a83c0$0300a8c0@haqa.co.uk>

I'm not on the list (I know, you're probably tired of hearing that) but I have produced a patch to Imaging-1.1.5 to allow bdist_rpm to work. Here it is...

Adrian...

------- CUT HERE -------
diff -ur Imaging-1.1.5/MANIFEST Imaging-1.1.5-fixed/MANIFEST
--- Imaging-1.1.5/MANIFEST      2005-10-05 23:11:01.000000000 +0100
+++ Imaging-1.1.5-fixed/MANIFEST        2006-01-19 20:15:08.000000000 +0000
@@ -80,3 +80,95 @@
 Scripts/pilfile.py
 Scripts/pilfont.py
 Scripts/pilprint.py
+decode.c
+display.c
+encode.c
+_imaging.c
+_imagingft.c
+_imagingtk.c
+map.c
+outline.c
+path.c
+Sane/CHANGES
+Sane/demo_numarray.py
+Sane/demo_pil.py
+Sane/README
+Sane/_sane.c
+Sane/sanedoc.txt
+Sane/sane.py
+Sane/setup.py
+Tk/booster.txt
+Tk/install.txt
+Tk/pilbitmap.txt
+Tk/tkImaging.c
+libImaging/Access.c
+libImaging/Antialias.c
+libImaging/Bands.c
+libImaging/BitDecode.c
+libImaging/Bit.h
+libImaging/Blend.c
+libImaging/Chops.c
+libImaging/Convert.c
+libImaging/ConvertYCbCr.c
+libImaging/Copy.c
+libImaging/Crc32.c
+libImaging/Crop.c
+libImaging/Dib.c
+libImaging/Draw.c
+libImaging/Effects.c
+libImaging/EpsEncode.c
+libImaging/Except.c
+libImaging/File.c
+libImaging/Fill.c
+libImaging/Filter.c
+libImaging/FliDecode.c
+libImaging/Geometry.c
+libImaging/GetBBox.c
+libImaging/GifDecode.c
+libImaging/GifEncode.c
+libImaging/Gif.h
+libImaging/HexDecode.c
+libImaging/Histo.c
+libImaging/Imaging.h
+libImaging/ImDib.h
+libImaging/ImPlatform.h
+libImaging/JpegDecode.c
+libImaging/JpegEncode.c
+libImaging/Jpeg.h
+libImaging/LzwDecode.c
+libImaging/Lzw.h
+libImaging/Matrix.c
+libImaging/ModeFilter.c
+libImaging/MspDecode.c
+libImaging/Negative.c
+libImaging/Offset.c
+libImaging/Pack.c
+libImaging/PackDecode.c
+libImaging/Palette.c
+libImaging/Paste.c
+libImaging/PcdDecode.c
+libImaging/PcxDecode.c
+libImaging/PcxEncode.c
+libImaging/Point.c
+libImaging/Quant.c
+libImaging/QuantDefines.h
+libImaging/Quant.h
+libImaging/QuantHash.c
+libImaging/QuantHash.h
+libImaging/QuantHeap.c
+libImaging/QuantHeap.h
+libImaging/QuantTypes.h
+libImaging/RankFilter.c
+libImaging/RawDecode.c
+libImaging/RawEncode.c
+libImaging/Raw.h
+libImaging/Storage.c
+libImaging/SunRleDecode.c
+libImaging/TgaRleDecode.c
+libImaging/Unpack.c
+libImaging/UnpackYCC.c
+libImaging/XbmDecode.c
+libImaging/XbmEncode.c
+libImaging/ZipDecode.c
+libImaging/ZipEncode.c
+libImaging/Zip.h
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From rus_poves_moreno at yahoo.es  Tue Jan 17 00:00:01 2006
From: rus_poves_moreno at yahoo.es (Rus Poves Moreno)
Date: Mon, 16 Jan 2006 23:00:01 -0000
Subject: [Image-SIG] convert .jpg to .eps with PythonMagick
Message-ID: <20060116225319.31769.qmail@web26205.mail.ukl.yahoo.com>

 Hi, sorry for my bad english, but I'm from Spain :-)
 I downloaded the package PythonMagick, cause I want to convert images jpg to eps, i need it to a proyect. I have Debian, but I don't know how to install this package, because there is not documentation about this.
 
 Anyone know about it?
 
 Thanks.
 
 Rus
 
 
 

		
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