TIFF2BW(1) General Commands Manual TIFF2BW(1)NAME
tiff2bw - convert a color TIFF image to greyscale
SYNOPSIS
tiff2bw [ options ] input.tif output.tif
DESCRIPTION
Tiff2bw 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 -R, -G, and -B options may be used.
OPTIONS -c Specify a compression scheme to use when writing image data: -c none for no compression, -c packbits for the PackBits compression
algorithm, -c zip for the Deflate compression algorithm, -c g3 for the CCITT Group 3 compression algorithm, -c g4 for the CCITT
Group 4 compression algorithm, and -c lzw for Lempel-Ziv & Welch (the default).
-r Write data with a specified number of rows per strip; by default the number of rows/strip is selected so that each strip is approxi-
mately 8 kilobytes.
-R Specify the percentage of the red channel to use (default 28).
-G Specify the percentage of the green channel to use (default 59).
-B Specify the percentage of the blue channel to use (default 11).
SEE ALSO pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)
October 15, 1995 TIFF2BW(1)
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TIFF2BW(1) General Commands Manual TIFF2BW(1)NAME
tiff2bw - convert a color TIFF image to greyscale
SYNOPSIS
tiff2bw [ options ] input.tif output.tif
DESCRIPTION
Tiff2bw 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 -R, -G, and -B options may be used.
OPTIONS -c Specify a compression scheme to use when writing image data: -c none for no compression, -c packbits for the PackBits compression
algorithm, -c zip for the Deflate compression algorithm, -c g3 for the CCITT Group 3 compression algorithm, -c g4 for the CCITT
Group 4 compression algorithm, and -c lzw for Lempel-Ziv & Welch (the default).
-r Write data with a specified number of rows per strip; by default the number of rows/strip is selected so that each strip is approxi-
mately 8 kilobytes.
-R Specify the percentage of the red channel to use (default 28).
-G Specify the percentage of the green channel to use (default 59).
-B Specify the percentage of the blue channel to use (default 11).
SEE ALSO pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)
Libtiff library home page: http://www.remotesensing.org/libtiff/
libtiff November 2, 2005 TIFF2BW(1)
hi, I am new to awk.. and getting used to the scripts. I have a small data set 5 coulms.. 16 rows.
1) I am trying to remove the percentages of each line of colum 3..like first line divided the sum of colum 3 divided by 100 and print it out. removing hte percentages of each line
I would really... (3 Replies)
I have a file with multiple entries and I have calculated the percentages. Now I want to know how many of my entries are there between 1-10% 11-20% and so on..
chr1_14401_14450 0.211954217888936
chr1_14451_14500 1.90758796100042
chr1_14501_14550 4.02713013988978
chr1_14551_14600 ... (3 Replies)
so i'm have been stifled here inn my attempts at this.
i need to calculate an unusual figure.
what is the percentage difference between 400 and 3?
usually, to get the percentage, you just divide the smaller number by the bigger number. then multiply the answer by 100.
in this case... (10 Replies)
Hi,
I have a table like this,
Group type L1 L2 L3 L4 L5 L6
A xx1 0 3 3 2 1 0
A xx2 2 2 2 1 7 2
B yy1 2 4 6 6 3 1
C yy2 7 7 7 0 2 3
C zz2 8 8 2 ... (6 Replies)