a jpeg. Each time you save a jpeg, some information in the photo is thrown away. This loss is cumulative. It will be especially aggravated if you save at less than maximum quality level.
Progressive damage, or corruption, while stored on a hard drive is extremely unlikely. That kind of damage would render the image unreadable. The change stems from something you are doing.
I am experiencing what appears to be a corruption of some of the jpg files on my hard drive. The file will often load fine from my camera card or scanner and appear OK but at a later time it will "lose" some of the color on the image. The bottom half (more or less) will be discolored all one hue (red or blue) or sometimes just darkened slightly. Does anyone have any experience and/or fixes for this problem?
Thanks in advance, skimmet