Enhanced parameters

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PCX file



graphman.exe inputfilename /pcx-comp=compression



compression - PCX Compression

unc - uncompressed PCX (incompatible with most PCX readers)

rle - compressed PCX (standard PCX)

JPG file





graphman.exe inputfilename /jpg_cs=colorspace /jpg_dct=DCTmethod /jpg_oh=OptimalHuffman /jpg_prg=Progressive /jpg_qlt=Quality /jpg_sm=Smooth





colorspace - specify the saved color space

1 - RGB is separate RGB channels

2 - GRAYLEV is unique intensity channel (gray levels)

3 - YCbCr three channels (CCIR Recommendation 601-1)

4 - CMYK four channels (Cyan Magenta Yellow Black) - linear convertion

5 - YCbCrK four channels (YCbCr and Black)

DCTmethod - Specify the DCT method

1 - ISLOW is slow but accurate integer algorithm

2 - IFAST is faster, less accurate integer method

3 - FLOAT is a floating-point method (machine dependent).

OptimalHuffman - Specifies if jpeg compressor have to use an optimal huffman table (more compression)), instead standard table.

0 - disable

1 - enable

Progressive - Specifies if this is a progressive jpeg.

0 - disable

1 - enable

Quality - Quality factor, from 1 to 100. The higher the value, the better the image quality, and the larger resultant memory needed.





Smooth - Smoothing factor (0 is none, 100 is max). If JPEG_Smooth is not zero, the jpeg compressor smooth the image before compress it. This improves compression.

Example:


graphman.exe test.dxf /jpg_cs=1 /jpg_dct=1 /jpg_oh=0 /jpg_prg=1 /jpg_qlt=50


BMP file



graphman.exe inputfilename /bmp_comp=compression



compression - BMP Compression

0 - uncompressed bitmap

1 - compressed bitmap (RLE) - Only 16 or 256 color bitmap can be saved with RLE compression.

TIF file
graphman.exe inputfilename /tif_comp=TIFF_Compression /tif_jpeg_qual=TIFF_JPEGQuality
TIFF_Compression

0 - uncompressed TIFF

1 - bilevel Huffman compression

2 - bilevel Group 3 CCITT compression, monodimensional

3 - bilevel Group 3 CCITT compression, bidimensional

4 - bilevel Group 4 CCITT compression, bidimensional

5 - LZW compression

6 - jpeg compression

7 - RLE compression

TIFF_JPEGQuality

TIFF_JPEGQuality is a quality factor, from 1 to 100 for TIFF compressed as JPEG.

The higher the value, the better the image quality and the larger amount of memory needed.

Example:


graphman.exe test.tif /tif_comp=6 /tif_jpeg_qual=50








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