@bc-surveyor In addition to the possible need to uncompress the image to display it, I might want to examine the values of various pixels to evaluate if the image was well exposed, if the colors were what I wanted, etc. I might want to eliminate the confusion caused by changes made to the pixels by lossy compression algorithms.
I haven't tried it myself, but I understand that the color correction software that works with color targets like the Macbeth Color Checker work with RAW images. I don't know if that software can even operate with JPEGs. But not being a fashion photographer, I don't have to worry about careful color balance.
Then there is the matter of images that are used in legal contexts. Since details are discarded by a compression algorithm, could an attorney seek to exclude a JPEG from evidence because the original was a TIFF?
