[bug #20064] *.png or *.ora loading crash, from Gimp 2.8: "lcms: ERROR: 9 Wrong input color space on transform"

[Andrew Chadwick]

Follow-up Comment #2, bug #20064 (project mypaint):

Should be fixed in https://gitorious.org/mypaint/mypaint/commit/32cb453d1b6 .
You'll see the message


lcms: ignoring non-RGB color profile. Signature: 0x47524159, 'GRAY'.


for this particular example, and it should load successfully.

I'm not sure why GIMP is writing RGB samples out to PNG files with a non-RGB
ICC profile. Is that even valid?


$ pnginfo ~/Desktop/test.png
/home/andrewc/Desktop/test.png...
  Image Width: 480 Image Length: 477
  Bitdepth (Bits/Sample): 8
  Channels (Samples/Pixel): 3
  Pixel depth (Pixel Depth): 24
  Colour Type (Photometric Interpretation): RGB 
  Image filter: Single row per byte filter 
  Interlacing: No interlacing 
  Compression Scheme: Deflate method 8, 32k window
  Resolution: 11811, 11811 (pixels per meter)
  FillOrder: msb-to-lsb
  Byte Order: Network (Big Endian)
  Number of text strings: 0 of 0


David: would it be possible for you to write out test.png as a real greyscale
image in gimp 2.8 ("Colour Type (Photometric Interpretation): GRAYSCALE", and
1 channel according to pnginfo) with the embedded profile, and see whether
MyPaint 32cb453+ can process it? Thanks.

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