clipka <ano### [at] anonymousorg> wrote:
> Am 07.09.2017 um 14:34 schrieb LiYanrui:
> > The section 2.3.4.1 in pov-ray tutorial
> > (http://www.povray.org/documentation/3.7.0/t2_3.html#t2_3_4) said, the following
> > options
> >
> > +w640 +h480 +a0.3 +am1 +fN -d File_Gamma=sRGB
> > Output_File_Name=gamma_showcase.png
> >
> > +w640 +h480 +a0.3 +am1 +fN -d File_Gamma=1.0
> > Output_File_Name=gamma_showcase_linear.png
> >
> > would generate two images and they should look identical in
> > viewing software. I can not get such results. Why different File_Gammas can
> > generate same results?
>
> Unfortunately, there seems to be a growing pile of crappy image viewing
> software out there that give **** about the encoding scheme information
> stored in the PNG file header, and just blindly presume /some/ standard
> scheme as with other image file formats.
>

Thanks you for your detailed explanations! I thought GIMP is not that kind of
software, but I am wrong. I viewd these two images in Firefox and they look
identical indeed.

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