[Image-SIG] Problem with TIFF compressed with JPEG
ced at bernispa.com
Mon Feb 19 13:12:04 CET 2007
I'd like to know if somobody else can see this problem.
I have some TIFF images compressed with JPEG and if i try to convert
them to another format (i've tryed with PNG, BMP and JPEG) the colour
Even if i have reported a similar problem with JPEG CMYK, seems that
this is another problem: the colours change in a different way.
I've have setup a web page with a sample image composed by the RGB
colours and a simple piece of code that trigger the problem.
The sample image is generated with Gimp, but i've verified that the
problem shows even if the original image is generated with another app
(i've tryed with IrfanView).
The particular thing is that this conversion happen (from the original
image to the converted one):
RED become GREEN
GREEN become BLUE
BLUE become RED
BLACK become DARK-GREEN
WHITE become MAGENTA
And this is independent to the destination format, as can be seen.
My system is Windows 2000 Pro SP4, Python 2.5 and PIL 1.1.6 (vanilla).
More information about the Image-SIG