EnglishFrenchSpanish

OnWorks favicon

pamstretch - Online in the Cloud

Run pamstretch in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command pamstretch that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


pamstretch - scale up a PNM or PAM image by interpolating between pixels

SYNOPSIS


pamstretch [-xscale=X] [-yscale=Y]
[-blackedge] [-dropedge] N [infile]

You can use the minimum unique abbreviation of the options. You can use two hyphens
instead of one. You can separate an option name from its value with white space instead
of an equals sign.

DESCRIPTION


pamstretch scales up pictures by integer values, either vertically, horizontally, or both.
pamstretch differs from pnmscale and pnmenlarge in that when it inserts the additional
rows and columns, instead of making the new row or column a copy of its neighbor,
pamstretch makes the new row or column an interpolation between its neighbors. In some
images, this produces better looking output.

To scale up to non-integer pixel sizes, e.g. 2.5, try pamstretch-gen(1) instead.

Options let you select alternative methods of dealing with the right/bottom edges of the
picture. Since the interpolation is done between the top-left corners of the scaled-up
pixels, it's not obvious what to do with the right/bottom edges. The default behaviour is
to scale those up without interpolation (more precisely, the right edge is only
interpolated vertically, and the bottom edge is only interpolated horizontally), but there
are two other possibilities, selected by the blackedge and dropedge options.

PARAMETERS


The N parameter is the scale factor. It is valid only if you don't specify -xscale or
-yscale. In that case, pamstretch scales in both dimensions and by the scale factor N.

OPTIONS


-xscale=X
This is the horizontal scale factor. If you don't specify this, but do specify a
vertical scale factor, the horizontal scale factor is 1.

-yscale=Y
This is the vertical scale factor. If you don't specify this, but do specify a
horizontal scale factor, the vertical scale factor is 1.

-blackedge
interpolate to black at right/bottom edges.
-dropedge
drop one (source) pixel at right/bottom edges. This is arguably more logical than
the default behaviour, but it means producing output which is a slightly odd size.

Use pamstretch online using onworks.net services


Free Servers & Workstations

Download Windows & Linux apps

  • 1
    strace
    strace
    The strace project has been moved to
    https://strace.io. strace is a
    diagnostic, debugging and instructional
    userspace tracer for Linux. It is used
    to monitor a...
    Download strace
  • 2
    gMKVExtractGUI
    gMKVExtractGUI
    A GUI for mkvextract utility (part of
    MKVToolNix) which incorporates most (if
    not all) functionality of mkvextract and
    mkvinfo utilities. Written in C#NET 4.0,...
    Download gMKVExtractGUI
  • 3
    JasperReports Library
    JasperReports Library
    JasperReports Library is the
    world's most popular open source
    business intelligence and reporting
    engine. It is entirely written in Java
    and it is able to ...
    Download JasperReports Library
  • 4
    Frappe Books
    Frappe Books
    Frappe Books is a free and open source
    desktop book-keeping software that's
    simple and well-designed to be used by
    small businesses and freelancers. It'...
    Download Frappe Books
  • 5
    Numerical Python
    Numerical Python
    NEWS: NumPy 1.11.2 is the last release
    that will be made on sourceforge. Wheels
    for Windows, Mac, and Linux as well as
    archived source distributions can be fou...
    Download Numerical Python
  • 6
    CMU Sphinx
    CMU Sphinx
    CMUSphinx is a speaker-independent large
    vocabulary continuous speech recognizer
    released under BSD style license. It is
    also a collection of open source tools ...
    Download CMU Sphinx
  • More »

Linux commands

crm
crm
Use crm online using onworks.net
services. ...
Run crm
  • 4
    crmgr
    crmgr
    crmgr - administration utility for QDBM
    Curia ...
    Run crmgr
  • 5
    gappletviewer
    gappletviewer
    gappletviewer - Load and runs an applet
    ...
    Run gappletviewer
  • 6
    gaps
    gaps
    mummer - package for sequence alignment
    of multiple genomes ...
    Run gaps
  • s-processed="true">
    g15stats
    g15stats - A CPU/Memory/Swap usage
    meter for G15Daemon DESCRIPTION: The
    packages provides the following usage
    meter for LCD on some Logitech
    keyboards, usind g...
    Run g15stats
  • More »
  • Ad