gifhisto(1) General Commands Manual gifhisto(1)NAME
gifhisto - A program to create histogram of number of pixels using each color. The output can be formatted into a GIF histogram file, or
as text file - both go to stdout.
USAGE
gifhisto [-q] [-t] [-s Width Height] [-n ImageNumber] [-b] [-h] gif-file
If no gif-file is given, GifHisto will try to read a GIF file from stdin.
MEMORY REQUIRED
Line.
OPTIONS
[-q]
Quiet mode. Default off on MSDOS, on under UNIX. Controls printout of running scan lines. Use -q- to invert.
[-t]
Force output to be text file of the following form: (colormap size) lines each containing two integers: number of times color
appeared, and color index. Lines are in increasing color index order. This output can be fed directly to a sort program if ordering
by color frequency is desired.
The colrmap picked is the one to be used for the image to generate histogram for, as defined in GIF format.
[-s Width Height]
Size of GIF histogram file. The Height of the histogram should be power of 2 dividable by number of colors in colormap.
Width sets the resolution (accuracy if you like) of the histogram as the maximum histogram bar is scaled to fit it.
[-n ImageNumber]
Image number to test. Default is one.
[-b]
Zeros the background color count. As only linear scale bars are supported and usually the background appears much more often then
other colors, deleting the background count will improve the scaling of other colors.
[-h]
Print one line of command line help, similar to Usage above.
AUTHOR
Gershon Elber
Man page created by T.Gridel <tgridel@free.fr>, originally written by Eric S. Raymond <esr@thyrsus.com>
giflib-tools gifhisto(1)
Check Out this Related Man Page
gifrotat(1) General Commands Manual gifrotat(1)NAME
gifrotat - A program to rotate a GIF image by a specified angle.
USAGE
gifrotat -a Angle [-q] [-s Width Height] [-h] gif-file
If no gif-file is given, GifRotat will try to read a GIF file from stdin.
MEMORY REQUIRED
Screen (of source image).
OPTIONS -a Angle
Specifies the angle to rotate in degrees with respect to the X (horizontal) axis.
[-q]
Quiet mode. Defaults off on MSDOS, on under UNIX. Controls printout of running scan lines. Use -q- to invert.
[-s Width Height]
Since the rotated image will have the same image size as the original, some parts of the image will by clipped out and lost. By
specifying a (bigger) size explicitly using the `-s' option, these parts may be saved.
[-h]
Print one line of command line help, similar to Usage above.
NOTES
The image is rotated around its center. No filtering is performed on the output, which have the same color map as the input. This is
mainly since filtering would require color quantization which is very memory/time intensive and out of MSDOS memory limits even for small
images.
AUTHOR
Gershon Elber
Man page created by T.Gridel <tgridel@free.fr>, originally written by Eric S. Raymond <esr@thyrsus.com>
giflib-tools gifrotat(1)
Because I am not creative, I did this:
find . -type f -name '*.GIF'|cut -d'/' -f2|awk -F. '{print "mv "$1".GIF "$1".gif --reply=yes"}' > case.sh
Then ran the case.sh - I was wondering if you guys could come up with something more efficient? Or even limit CPU useage? It is killing my poor ext3... (3 Replies)
Hi I am trying to fit my histogram data with a gaussian model and am encountering two problems:
1. I can't seem to fit the histogram data with a model
fit y(x) 'bin.txt' using 2:xtic(1) via a,b,c (error: need 2 to 7 using specs)
2. Even when I manually guess the correct parameters for my fit and... (1 Reply)
I am having a bit of trouble plotting a histogram in gnuplot. I am trying to use it to draw bars side by side. The first bar is from column five in my data file. The second bar is actually three bars stacked on top of each other and should be as tall as the first bar. The data is from the 2nd,... (0 Replies)
Hi,
I have 2 files with similar structure - reference and test that I would like to BIN both and generate the comparison.
input files structure is:
a 3
b 10
c 3
d 7
e 1
f 4
g 9
h 6
I would like the output to be (lets say both reference and test are the file above - no diff)
BIN ... (3 Replies)