GPIV_GETBIT(1) General Commands Manual GPIV_GETBIT(1)NAME
gpiv_getbit - Image processing program for PIV images.
SYNOPSIS
gpiv_getbit [-b N] [-h | --help] [-p | --print] [-v | --version] [filename] < stdin > stdout
DESCRIPTION
gpiv_getbit get the N least significant bits and moves them to most the significant bits. This results that a weak image signal (pixels of
low value) is amplified while the high signal within the image will be removed.
The parameters read from the configuration resources (containing the key GPIV_IMGPROC) may be overruled by the command line options, as
explained below.
Options-b N Defines the bit number [0, .., 7]. Signal from 0 to N will be shifted.
-h | --help
On-line help
-v | --version
Print version information on standard output, then exit successfully.
filename
Input image filename. Overrides stdin and stdout with the full filename of the image. Output will be written to filename.png. Param-
eters are stored in filename.par and may be used for future use by including them in ./gpivrc. If stdin and stdout are used, the
input is expected to be a PNG formatted image.
SEE ALSO
gpivtools
AUTHOR
Gerber Van der Graaf
7 November 2006 GPIV_GETBIT(1)
Check Out this Related Man Page
GPIV_VHISTO(1) General Commands Manual GPIV_VHISTO(1)NAME
gpiv_vhisto - Tests PIV data by printing/displaying an histogram of the vertical particle displacements.
SYNOPSIS
gpiv_vhisto [-g] [-h | --help] [-n N] [-p | --print] [-v | --version] [filename] < stdin > stdout
DESCRIPTION
Gpiv_vhisto calculates the histogram of the vertical particle displacement distribution between minimum and maximum values.
The parameters read from the configuration resources (containing the key VALID) may be overruled by the command line options, as explained
below.
Options-g Graphical visualization of the histogram with gnuplot.
-h | --help
On-line help
-n N Override number of bins (default 10, hard coded).
-p | --print
Print parameters, command line options and eventually used input and output filenames to stdout. The output is identic of file-
name.par, in case -f is used.
-v | --version
Print version information on standard output, then exit successfully.
filename
Input PIV file. Overrides stdin and stdout. Output will be written to filename.pdf. The parameters will be written or appended to
filename.par and may be used for future use by including them in ./gpivrc.
SEE ALSO
gpivtools
NOTES
stdin and stdout has still to be implemented. [-f filename ] will be added.
AUTHOR
Gerber Van der Graaf
BUGS
The program seems to work fine with real PIV data. So far, no serious bugs have been found.
8 November 2006 GPIV_VHISTO(1)
hi,
how does a program know whether some data are available from stdin?
I would like to make a program which could read its data from stdin
and _if_there_is_nothing_at_stdin_ from a file which name is given
as an argument. If there is nothing in stdin and no filename is given as
argument,... (2 Replies)
hii..
I need to implement a pure virtual FSM program design which copies stdin to stdout, converting any C trigraphs found to their single character form (e.g. converting trigraph ??= to #) including those in the comments.
implement a pure virtual FSM program design. See the class notes for more... (1 Reply)
Hi,
Program A: uses pipe()
I am able to read the stdout of PROGAM B (stdout got through system() command) into PROGRAM A using:
* child
-> dup2(fd, STDOUT_FILENO);
-> execl("/path/PROGRAM B", "PROGRAM B", NULL);
* parent
-> char line;
-> read(fd, line, 100);
Question:
---------... (1 Reply)
Hi,
Program A: uses pipe()
I am able to read the stdout of PROGAM B (stdout got through system() command) into PROGRAM A using:
* child
-> dup2(fd, STDOUT_FILENO);
-> execl("/path/PROGRAM B", "PROGRAM B", NULL);
* parent
-> char line;
-> read(fd, line, 100);
Question:
---------... (3 Replies)
Hi,
I am working on a project where I have to generate and execute nasm code on-the-fly. I generate the code in a file program.asm and then execute it.This output is to stdout which i redirect to an output file which i read back to compare results:
system("nasm -f elf program.asm >... (5 Replies)
Hi guys,
Those who work with Background Oriented Schlieren (BOS) might wonder how to create image pairs suitable for a PIV image processing software.
Here is the code :
#!/bin/bash
# This is a program to read *.jpg files and save them in pairs for postprocessing
nfiles=`ls -1 bild*... (0 Replies)