Retouching with Perl
Color Play
© Saniphoto, Fotolia
In many cases, whole series of digital images need the same kind of modifications, which forces the photo-grapher to repeat the same steps time and time again in GIMP. Have you ever considered retouching in Perl?
Before posting snapshots I've taken with my digital camera to the web, I used to go through the same old steps with GIMP. First, I'd reduce the image size to a width of 1,000 pixels because the image size my Nikon D70 gives me is just too much for the web and uploading the images takes too long. Also, to improve the contrast, correct any color casting, and make images tack-sharp with GIMP's Sharpen function, I typically select a value of 20.
As you might know, GIMP has a convenient scripting interface that lets users automate recurring tasks, and you can even run it at the command line without launching the GUI. GIMP developers have made some fairly significant changes to the whole API and nothing works the way it used to. Fortunately, GIMP documents the functions completely and thoroughly in the Xtns | Procedure Browser menu.
The standard interface is implemented in the rocket scientist's favorite programming language, Scheme.
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
CachyOS Now Lets Users Choose Their Shell
Imagine getting the opportunity to select which shell you want during the installation of your favorite Linux distribution. That's now a thing.
-
Wayland 1.24 Released with Fixes and New Features
Wayland continues to move forward, while X11 slowly vanishes into the shadows, and the latest release includes plenty of improvements.
-
Bugs Found in sudo
Two critical flaws allow users to gain access to root privileges.
-
Fedora Continues 32-Bit Support
In a move that should come as a relief to some portions of the Linux community, Fedora will continue supporting 32-bit architecture.
-
Linux Kernel 6.17 Drops bcachefs
After a clash over some late fixes and disagreements between bcachefs's lead developer and Linus Torvalds, bachefs is out.
-
ONLYOFFICE v9 Embraces AI
Like nearly all office suites on the market (except LibreOffice), ONLYOFFICE has decided to go the AI route.
-
Two Local Privilege Escalation Flaws Discovered in Linux
Qualys researchers have discovered two local privilege escalation vulnerabilities that allow hackers to gain root privileges on major Linux distributions.
-
New TUXEDO InfinityBook Pro Powered by AMD Ryzen AI 300
The TUXEDO InfinityBook Pro 14 Gen10 offers serious power that is ready for your business, development, or entertainment needs.
-
LibreOffice Tested as Possible Office 365 Alternative
Another major organization has decided to test the possibility of migrating from Microsoft's Office 365 to LibreOffice.
-
Linux Mint 20 Reaches EOL
With Linux Mint 20 at its end of life, the time has arrived to upgrade to Linux Mint 22.