Image Compression (Compression).

There are two image file compression: lossless and lossy compression. .Lossless compression lossless compression effect similar to WinZip. .In the WinZip compression, if you put a file compressed into a Zip file, unzip and then re-open the original file, you will find the files after extracting the original file and with no difference. .In the process of compression and decompression and image files without any <P> There are two compression: lossless and lossy compression. .</ P> <P> lossless compression </ P> <P> WinZip lossless compression with similar results. .In the WinZip compression, if you put a file compressed into a Zip file, unzip and then re-open the original file, you will find the files after extracting the original file and with no difference. .In the process of compression and decompression, and no information is missing. .TIFF format, digital images will allow users to its lossless compression. .</ P> <P> lossy compression </ P> <P> lossy compression to reduce image size by discarding information (size), as the summary document preparation. .When you need a 10-page document prepared summaries, these summaries may account for only 9 or even one, who did not read the original documents from you to restore the original summary document, because you are in the process in the preparation of summary .has been discarded as part of the original file. .JPEG is a lossy compression image format. .</ P> <P> The following table shows a 500 million pixel images (2,560 x 1,920) the effect of different compression formats. .</ P> image format is usually file size (MB) Notes uncompressed TIFF14.13 channel, 8-bit uncompressed 12-bit RAW7.71 channel 12-bit lossless compressed TIFF6.0 12 RAW4.3 approximate compressed lossless compression .100% Quality JPEG2.3 and uncompressed image is difficult to distinguish between 80% Quality JPEG1.3 can handle 4 "x 6" print size of 60% Quality JPEG0.7 able to cope with network share 20% Quality JPEG0.2 poor quality .<! - Navigation Menu - ".