[Image-SIG] How to convert mode 'RGB' into 'P'
Chris Cogdon
chris at cogdon.org
Fri Oct 10 11:55:54 EDT 2003
On Friday, Oct 10, 2003, at 06:06 US/Pacific, Bjoern Platzen wrote:
> I tried outimg.convert('P') but it had no effect. The image was still
> in
> 'RGB'-Mode.
>
> Is there anyway to do this? I think my images will become smaller when
> they are in mode 'P'.
--
("`-/")_.-'"``-._ Chris Cogdon <chris at cogdon.org>
. . `; -._ )-;-,_`)
(v_,)' _ )`-.\ ``-'
_.- _..-_/ / ((.'
((,.-' ((,/ fL
When you convert to 'P' mode, you need to specify a palette. For
example:
p_image = rgb_image.convert ( "P", palette=Image.ADAPTIVE,
dither=Image.NONE, colors=256 )
If you want to ensure you're using the same palette as the original 'P'
image, you can do this:
p_image = rgb_image.convert ( "P", palette=old_p_image.palette,
dither=Image.NONE )
And, remember that 'convert' returns a new image, rather than affecting
the object.
Hope that helps.
--
("`-/")_.-'"``-._ Ch'marr, a.k.a.
. . `; -._ )-;-,_`) Chris Cogdon <chmarr at furry.org.au>
(v_,)' _ )`-.\ ``-'
_.- _..-_/ / ((.' FC1.3:
FFH3cmA+>++C++D++H++M++P++R++T+++WZ++Sm++
((,.-' ((,/ fL RLCT acl+++d++e+f+++h++i++++jp-sm++
More information about the Image-SIG
mailing list