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ImageMagick.1
(6.16 KB)
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animate.1
(5.39 KB)
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compare.1
(5.77 KB)
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composite.1
(6.15 KB)
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conjure.1
(1.79 KB)
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convert.1
(18.66 KB)
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cwebp.1
(13.12 KB)
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display.1
(7.59 KB)
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dwebp.1
(4.71 KB)
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fax2ps.1
(4.28 KB)
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fax2tiff.1
(8.07 KB)
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freetype-config.1
(2.82 KB)
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gif2webp.1
(5.43 KB)
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heif-convert.1
(914 B)
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heif-enc.1
(2.36 KB)
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heif-info.1
(659 B)
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heif-thumbnailer.1
(736 B)
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identify.1
(4.94 KB)
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img2webp.1
(3.89 KB)
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import.1
(5.51 KB)
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magick-script.1
(15.41 KB)
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magick.1
(15.48 KB)
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mogrify.1
(18.43 KB)
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montage.1
(8 KB)
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pal2rgb.1
(2.87 KB)
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ppm2tiff.1
(2.5 KB)
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raw2tiff.1
(4.94 KB)
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rgb2ycbcr.1
(2.64 KB)
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stream.1
(3.36 KB)
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thumbnail.1
(2.51 KB)
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tiff2bw.1
(2.39 KB)
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tiff2pdf.1
(7.14 KB)
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tiff2ps.1
(8.24 KB)
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tiff2rgba.1
(3.16 KB)
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tiffcmp.1
(2.34 KB)
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tiffcp.1
(9.58 KB)
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tiffcrop.1
(23.83 KB)
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tiffdither.1
(3.52 KB)
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tiffdump.1
(2.32 KB)
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tiffgt.1
(6.27 KB)
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tiffinfo.1
(2.27 KB)
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tiffmedian.1
(2.94 KB)
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tiffset.1
(2.52 KB)
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tiffsplit.1
(1.83 KB)
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vwebp.1
(2.49 KB)
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webpinfo.1
(1.78 KB)
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webpmux.1
(6.44 KB)
Editing: tiff2bw.1
.\" Man page generated from reStructuredText. . . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. .TH "TIFF2BW" "1" "Jun 10, 2023" "4.5" "LibTIFF" .SH NAME tiff2bw \- convert a color TIFF image to greyscale .SH SYNOPSIS .sp \fBtiff2bw\fP [ \fIoptions\fP ] \fIinput.tif\fP \fIoutput.tif\fP .SH DESCRIPTION .sp \fBtiff2bw\fP converts an RGB or Palette color TIFF image to a greyscale image by combining percentages of the red, green, and blue channels. By default, output samples are created by taking 28% of the red channel, 59% of the green channel, and 11% of the blue channel. To alter these percentages, the \fI\%\-R\fP, \fI\%\-G\fP, and \fI\%\-B\fP options may be used. .SH OPTIONS .INDENT 0.0 .TP .B \-c compress Specify a compression scheme to use when writing image data: \fB\-c none\fP for no compression, \fB\-c packbits\fP for the PackBits compression algorithm, \fB\-c zip\fP for the Deflate compression algorithm, \fB\-c g3\fP for the CCITT Group 3 compression algorithm, \fB\-c g4\fP for the CCITT Group 4 compression algorithm, \fB\-c lzw\fP for Lempel\-Ziv & Welch (the default). .UNINDENT .INDENT 0.0 .TP .B \-r striprows Write data with a specified number of rows per strip; by default the number of rows/strip is selected so that each strip is approximately 8 kilobytes. .UNINDENT .INDENT 0.0 .TP .B \-R redperc Specify the percentage of the red channel to use (default 28). .UNINDENT .INDENT 0.0 .TP .B \-G greenperc Specify the percentage of the green channel to use (default 59). .UNINDENT .INDENT 0.0 .TP .B \-B blueperc Specify the percentage of the blue channel to use (default 11). .UNINDENT .SH SEE ALSO .sp \fI\%pal2rgb\fP (1), \fI\%tiffinfo\fP (1), \fI\%tiffcp\fP (1), \fI\%tiffmedian\fP (1), \fI\%libtiff\fP (3tiff), .SH AUTHOR LibTIFF contributors .SH COPYRIGHT 1988-2022, LibTIFF contributors .\" Generated by docutils manpage writer. .
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