JPG or lossless for image archives?

Rick Matthews

 

JPG or lossless for image archives?

Important warning to readers: loading and saving a JPG repeatedly will accumulate the small errors introduced, so that the image can seriously degrade. Working copies of images should be kept in a lossless format. When you are through with your manipulations, you may then save to JPG once, with minimal loss of quality. Also, please note that not all graphics programs do an equally effective job of JPG compression. Although there is a unique way of displaying a JPG, creating the JPG involves choices that some programs make better than others.

 

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