 BetterPhoto Member |
Cropping and Saving a JPEG When I crop a jpeg image and then save. I get a warning saying something about saving as a lossey file. Could you explain exactly what is a lossey file and how can I avoid it.
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BetterPhotoJim.com - Jim Miotke  Contact Jim Miotke Jim Miotke's Gallery |
The "lossey" warning refers to the fact that a JPEG file is compressed to some degree or another. It has nothing to do with whether you crop or not. However, when you save an image as a JPEG (as opposed to saving it as a TIFF or PICT file, for example), all the computer information is "squeezed" down so that it will transmit via email or the Web faster. This process of compressing and uncompressing the image will - to one degree or another - cause the image quality to suffer. The more you compress a JPEG, the faster it will transmit (much to the joy of the friends you email it to) but it will also show more of these little image quality defects, called artifacts. Most of the time, all you have to do is save a JPEG somewhere closer to the "high-quality/low-compression" end of the spectrum in order to avoid these artifacts. In fact, most people don't even notice them unless they are really prevalent.
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