[Leica] question about image viewing and profiles

[Nathan Wajsman]

The two images look identical on my screen (Mac mini with an Acer monitor).

Cheers,
Nathan

Nathan Wajsman

Alicante, Spain
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> On 23 Apr 2020, at 19:01, Brian Reid <reid at mejac.palo-alto.ca.us> wrote:
> 
> I've been looking into complaints that the LUG gallery is muddying many images that Bill Clough is posting. They don't look muddy to me, but I believe the people who say that they see mud.
> 
> After some research, I determined that the majority of his images in the gallery are tagged with the ICC profile "Gray gamma 2.2", which is put there by his film scanner. I have a profile by that name on my computer, so when I clicked on his images, the conversion was done correctly by my image viewing software and I saw what he intended.
> 
> I wonder how many LUG people are seeing mud. Do you see any significant difference between the image quality of these two images:
> 
> A: http://gallery.leica-users.org/d/486424-2/Harvest_+Estes+Park_+1987.jpg
> 
> B: http://reid.org/~brian/images/Estes%20Park%20with%20sRGB%20profile.jpg
> 
> On my screen, those images look very similar but not totally identical. I guess it depends on which software component is doing the color transformation.
> 
> If you don't see much of a difference, that means that your computer is dealing successfully with the unusual but not illegal profile "Gray gamma 2.2", which is intended as a Photoshop preview-mode pseudo-profile and not an imbedded profile. I guess nobody told this to the manufacturer of Bill's scanner.
> 
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