The libjpeg-turbo-utils package contains simple client programs for accessing
the libjpeg functions. It contains cjpeg, djpeg, jpegtran, rdjpgcom and
wrjpgcom. Cjpeg compresses an image file into JPEG format. Djpeg decompresses a
JPEG file into a regular image file. Jpegtran can perform various useful
transformations on JPEG files. Rdjpgcom displays any text comments included in a
JPEG file. Wrjpgcom inserts text comments into a JPEG file.
cjpeg cjpeg compresses the named image file, or the standard input if no file is named, and produces a JPEG/JFIF file on the standard output. The currently supported... djpeg djpeg decompresses the named JPEG file, or the standard input if no file is named, and produces an image file on the standard output. PBMPLUS (PPM/PGM), BMP... jpegtran jpegtran performs various useful transformations of JPEG files. It can translate the coded representation from one variant of JPEG to another, for example from... rdjpgcom rdjpgcom reads the named JPEG/JFIF file, or the standard input if no file is named, and prints any text comments found in the file on the standard output. The... wrjpgcom wrjpgcom reads the named JPEG/JFIF file, or the standard input if no file is named, and generates a new JPEG/JFIF file on standard output. A comment block is...