Quote:
Originally Posted by Pete Deksnis
Thanks for the added info. Quick followup question: Is the 'gray' no-seam behind the Bisquick box an assumption, albeit a good one?
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It's partly an assumption, but it's backed up by the fact that the black area of the photo outside the screen is similarly faded - harder to see by eye because it's still quite dark, but shows plainly in the histogram.
By the way, part of the quality loss in these pictures is due to the high compression settings of the jpeg. This means the color is pretty blocky, so that the correction may be too much / too little depending on the innacuracy of the coding. If you look at the test pattern 3rd version (with the hue/saturation change), you can see artifacts being amplified by the correction process. I wonder if there are higher quality files somewhere, or if Google went to this high compression without saving them.