11-14-2005, 01:46 AM
Guys...you simply have to know when to use each format. JPEG is for photographs...what do you think the P means? Photographic. 
Images with colour pools do not compress well with JPEG, so line art, cartoons, low bitdepth stuff, etc. do not look good as JPEG. You're better off with PNG on those types of images. And yes, JPEG is always lossy unless you use the lossless JPEG algorithm which is not exactly widespread. Using 100% quality JPEG does NOT equate to a lossless JPEG, it simply means that the encoder will try to preserve the original image as closely as possible without breaking the compression algorithm.
Images with colour pools do not compress well with JPEG, so line art, cartoons, low bitdepth stuff, etc. do not look good as JPEG. You're better off with PNG on those types of images. And yes, JPEG is always lossy unless you use the lossless JPEG algorithm which is not exactly widespread. Using 100% quality JPEG does NOT equate to a lossless JPEG, it simply means that the encoder will try to preserve the original image as closely as possible without breaking the compression algorithm.
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