Further to Post 35 on the question how does Jpeg max quality setting compare with the original Tiff. I have written a little utility program to compare each pixel in the tiff image against the jpeg version. The test image in Post 35 is 150 x 150 pixels = 22500 pixels.
The attached compares of the 3 versions of the saved as jpeg with settings of Max Quality, 9 and 5 against the original tiff. In the case of the Max Quality version some 90% of the pixels are the same as the tiff and the other 10% are within 1%.
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Last edited by robski; 26-07-11 at 22:34.
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