📄 ljpgtopnm.1
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.TH LJPGTOPNM 1 "14 June 1994".SH NAMEljpgtopnm \- decode a lossless JPEG file to a Portable Pixmap or \Portable Graymap image file.SH SYNOPSIS.B ljpgtopnm[.BI \-v][.I filename ...].LP.SH DESCRIPTION.LP.B ljpgtopnmdecode a lossless JPEG file to a PPM (Portable Pixmap) or PGM(Portable Graymap) image file. If no files are specified, thestandard input is decoded to the standard output..SH OPTIONS.TP.B \-v "verbose"Display data about image format, image size and sample precision..SH EXAMPLES.LPThis example decodes a ljpg file foo.ljpg and outputs to foo.ppm..IP.B ljpgtopnm.I foo.ljpg foo.ppm.LPNext example decodes the foo.ljpg with verbose option. The output is saved as foo.ppm..IP.B ljpgtopnm.I -v.B <.I foo.ljpg.B >.I foo.ppm.SH SEE ALSO.BR pnmtoljpg (1),.BR ppm (5),.BR pgm (5).brWallace, Gregory K. "The JPEG Still Picture Compression Standard",Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44..SH AUTHORKongji Huang and Brian Smith.SH BUGSArithmetic coding and multiple scans are not supported.
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