Sharpen images with Perl and GIMP
To tell GIMP to parse the smartsharp script when it launches, you must install the script in GIMP's plugin directory with the following command line:
gimptool-2.0 --install-bin smartsharp
The gimptool-2.0 utility is provided by the Debian libgimp2.0-dev package. So that GIMP can understand Perl scripts, you also need to install libgimp2.0 and libgimp-perl.
If you are changing the image in any other way, resizing, or correcting the colors, make sure that sharpening is the last step you perform. Otherwise, the various methods could step on each other's toes and possibly even reverse the sharpening process.
Of course, if an image is badly out of focus, no kind of manipulation is going to make a mega-sharp masterpiece of it; techniques like the tricks I cover here in this article are just patchwork. Out-of-focus images contain less information than sharp images – removing information from an image is easy, but adding information is just about as difficult as getting toothpaste back into the tube.
- Listings: http://www.linux-magazine.com/Resources/Article-Code
- The Digital Photography Book by Scott Kelby: http://www.kelbytraining.com/books/
Mozilla’s script blocker add-on could be putting malware sites on the whitelist.
The Internet community officially banishes the notoriously unsafe Secure Sockets Layer protocol.
Popular desktop environment continues the Gnome 2 legacy – with new support for the Gnome 3 toolkit.
The Obama White House has issued a memorandum telling all US government agencies they must use HTTPS for all websites and web communication.
New program will dial up security for the Firefox browser.
Red Hat's community distro embraces the cloud.
New partnership will bring more and better CS training to US schools
Criminals offer online help over Tor network
Sophisticated malware is still present on Joomla and WordPress sites around the world.
Future versions of Ubuntu's code service will support the popular Git version control system used with Linux and other open source projects.