7.1.404. cjpegΒΆ

Link to classic view

usage: cjpeg [switches] [inputfile] Switches (names may be abbreviated):

-quality N Compression quality (0..100; 5-95 is useful range)
-grayscale Create monochrome JPEG file
-optimize Optimize Huffman table (smaller file, but slow compression)
-progressive Create progressive JPEG file
-targa Input file is Targa format (usually not needed)

Switches for advanced users:

-dct int Use integer DCT method (default) -dct fast Use fast integer DCT (less accurate) -dct float Use floating-point DCT method
-restart N Set restart interval in rows, or in blocks with B
-smooth N Smooth dithered input (N=1..100 is strength)
-maxmemory N Maximum memory to use (in kbytes)
-outfile name Specify name for output file
-verbose or -debug Emit debug output

Switches for wizards:

-baseline Force baseline quantization tables
-qtables file Use quantization tables given in file
-qslots N[,...] Set component quantization tables
-sample HxV[,...] Set component sampling factors
-scans file Create multi-scan JPEG per script file

Table Of Contents

This Page