mirror of
https://git.FreeBSD.org/ports.git
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52 lines
2.2 KiB
Plaintext
52 lines
2.2 KiB
Plaintext
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This collection provides a complete package for manipulating and
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converting color and black and whites images, including 24bit RGB, 8bit
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mapped color, 8bit grayscale, and 1bit bitmapped images.
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clr2gray Convert color to grayscale
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fbcat Copy image (used for format conversion)
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fbclean Flip isolated pixels (clean image)
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fbconv Arbitrary convolutions
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fbedge Compute derivative image (edge detection)
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fbext Extract region, resize, change aspect ratio
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fbgamma Gamma correct grayscale or color image for display
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fbhalf Halftone grayscale image (Blue noise, Floyd-Steinberg, etc)
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fbham Convert FBM 24bit RGB to Amiga HAM mode
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fbhist Compute histogram
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fbinfo Dump image header
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fbm2pod Convert grayscale image to Diablo graphics (!)
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fbm2tga Convert image to Targa format
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fbm2tiff Convert FBM files to 1, 2, 4, 8, or 24 bit TIFF
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fbmask Set region to gray value
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fbmedian Median filter 3x3 regios
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fbnorm Normalize image intensity / increase contrast
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fbpalet Replace an imager's colormap with another, remove duplicates
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fbps Convert to PostScript
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fbquant Color quantization (24 bit to 8..256 colors) Mod. Heckbert
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fbrot Rotate 90, 180, or 270 degrees
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fbthin Thin 1bit images
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fbsample Sample a 1bit file to produce an 8bit file
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fbsharp Sharpen (edge enhancement) by digital Laplacian
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gray2clr Add a "gray" colormap to a grayscale image
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idiff (and udiff) convert raw byte stream into byte difference
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pbm2ps Convert PBM file to PostScript
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pbmtitle Add a title to a PBM file
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raw2fbm Convert raw file to FBM format (eg: Amiga Digiview files)
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tga2fbm Convert Targa file to FBM format
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tiff2fbm Convert tiff file to FBM format
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uunet2fbm Convert UseNet Facesaver file to FBM format
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File Formats
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FBM (-F) FBM file with 256 byte header (with title & credits)
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Sun (-S) Sun rasterfile with 32 byte header
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Tiff (-T) Aldus TIFF
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PBM (-P) Poskanzer format for 1bit files
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GIF (-G) CompuServe GIF format
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JPG (-J) JPEG JFIF format (cf The Independent JPEG Group)
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RLE (-R) Utah RLE format
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IFF (-I) Amiga IFF files (except HAM mode files)
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PCX (-Z) PC PaintBrush format for IBM
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Face (-B) Bennet Yee's 1bit files, used at CMU
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___________
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From the README file
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