Lines Matching refs:COM

589 The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file.
590 Although the standard doesn't actually define what COM blocks are for, they
593 them as text.  COM blocks do not interfere with the image stored in the JPEG
594 file.  The maximum size of a COM block is 64K, but you can have as many of
597 We provide two utility programs to display COM block contents and add COM
600 rdjpgcom searches a JPEG file and prints the contents of any COM blocks on
611 wrjpgcom adds a COM block, containing text you provide, to a JPEG file.
612 Ordinarily, the COM block is added after any existing COM blocks, but you
613 can delete the old COM blocks if you wish.  wrjpgcom produces a new JPEG
629         -replace                 Delete any existing COM blocks from the file.
630         -comment "Comment text"  Supply new COM text on command line.
631         -cfile name              Read text for new COM block from named file.
643 wrjpgcom will not add a COM block if the provided comment string is empty.
644 Therefore -replace -comment "" can be used to delete all COM blocks from a