[AstroPy] Hubble deep field as JPEG or PNG with AVM info anyone?

[Christoph Deil]

On 03 Mar 2014, at 16:06, Megan Sosey <sosey at stsci.edu> wrote:

> I don't know about avm info, but check out the available images on hubblesite.org

Hi Megan,

thanks for the tip … found one that fits all criteria … it even contains AVM info!

http://hubblesite.org/newscenter/archive/releases/2012/37/image/a/

$ wget http://imgsrc.hubblesite.org/hu/db/images/hs-2012-37-a-large_web.jpg
$ python -c 'from pyavm import AVM; print(AVM.from_image("hs-2012-37-a-large_web.jpg"))'
Spatial:
  ReferencePixel:
     * 3657.5
     * 384.0
  Equinox: 2000
  ReferenceValue:
     * 53.122751
     * -27.805089
  ReferenceDimension:
     * 3380.0
     * 3286.0
  Scale:
     * -1.66666666667e-05
     * 1.66666666667e-05
  CoordsystemProjection: TAN
  Rotation: -0.0
Type: Observation
FL:
  BackgroundLevel:
     * 0.0
  StretchFunction:
     * Arcsinh(x)
  ScaledBackgroundLevel:
     * 0.0
  WhiteLevel:
     * 4.84225618744
  ScaledPeakLevel:
     * 1000.0
  PeakLevel:
     * 5.0
  BlackLevel:
     * -0.331921895361
MetadataVersion: 1.1


Thanks for your help!
Christoph

> 
> Sent from my iPhone
> 
> On Mar 3, 2014, at 10:01 AM, "Christoph Deil" <deil.christoph at googlemail.com> wrote:
> 
>> Hi,
>> 
>> as part of a pull request for blob detection [1], the scikit-image guys decided to add a Hubble deep field image [2] to their `skimage.data` example images [3] to their repository, and we’re trying to find the best file to choose.
>> 
>> The ideal file would be:
>> 1. an RGB image in PNG or JPEG format 
>> 2. not too large (say 100 kB to 500 kB max)
>> 3. include AVM info [4]
>> 4. have a public, permanent URL as a reference
>> 
>> Does someone know where to a file in this format?
>> 
>> Cheers,
>> Christoph
>> 
>> 
>> [1] https://github.com/scikit-image/scikit-image/pull/900
>> [2] http://en.wikipedia.org/wiki/Hubble_Deep_Field
>> [3] http://scikit-image.org/docs/dev/api/skimage.data.html
>> [4] http://en.wikipedia.org/wiki/Astronomy_Visualization_Metadata
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