libjpeg Free and open source JPEG library for your Mac
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library compress jpeg library jpeg compression jpeg decompression jpeg

libjpeg Description

Free and open source JPEG library for your Mac libjpeg contains C software to implement JPEG image compression and decompression. JPEG is a standardized compression method for full-color and gray-scale images. JPEG is intended for compressing "real-world" scenes; line drawings, cartoons and other non-realistic images are not its strong suit. JPEG is lossy, meaning that the output image is not exactly identical to the input image. Hence you must not use JPEG if you have to have identical output bits. However, on typical photographic images, very good compression levels can be obtained with no visible change, and remarkably high compression levels are possible if you can tolerate a low-quality image.ibjpeg implements extended-sequential, progressive compression processes and JPEG baseline. Provision is made for supporting all variants of these processes, although some uncommon parameter settings aren't implemented yet. To install the library, follow these instructions:· tar zxvf jpegsrc.v6b.tar.gz· cd jpeg-6b· cp /usr/share/libtool/config.sub .· cp /usr/share/libtool/config.guess .· ./configure --enable-shared --enable-static· make· sudo make install· sudo ranlib /usr/local/lib/libjpeg.a

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