MAN Solaris - tiff2bw (1)

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NAME

tiff2bw - convert a color TIFF image to grayscale

CONTENTS

SYNOPSIS

tiff2bw [options] input.tif output.tif

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DESCRIPTION

tiff2bw converts an RGB or palette color TIFF image to a grayscale 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, use the -R. -G, and -B options.

OPTIONS

The following options are supported:

-B Specify the percentage of the blue channel to use. The default value is 11.

-c Specify a compression scheme to use when writing image data:

-c g3 CCITT Group 3 compression algorithm.

-c g4 CCITT Group 4 compression algorithm.

-c lzw Lempel-Ziv and Welch algorithm. This is the default algorithm.

-c none No compression.

-c packbits PackBits compression algorithm.

-c zip Deflate compression algorithm.

-G Specify the percentage of the green channel to use. The default value is 59.

-R Specify the percentage of the red channel to use. The default value is 28.

-r Write data with a specified number of rows per strip. By default, the number of rows per strip is selected so that each strip is approximately 8 kilobytes.

OPERANDS

The following operands are supported:

input.tif The name of the input TIFF file.

output.tif The name of the output file.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWTiff
Interface stabilityEvolving

SEE ALSO

pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)

NOTES

Updated by Breda McColgan, Sun Microsystems Inc., 2004.

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SunOS 5.11 tiff2bw (1) 26 Mar 2004
Generated by Open Solaris Forum from /usr/share/man/man1/tiff2bw.1 using man macros with tbl support.