Version: 1.5.1 (using KDE KDE 3.5.3) Installed from: Debian testing/unstable Packages Compiler: GCC 4.1.x OS: Linux Krita supports a number of filters for resizing images - Bell, Spline, Mitchell, etc. There is one important filter it doesn't support, Bicubic, which is similar to Mitchell but with changes for enhanced sharpness. The GIMP supports it, and Gwenview as well (though only for viewing in Gwenview's case). I find it to be noticeably superior to Mitchell, and when trying to use Krita to resize images, I found myself stopping and going back to the GIMP to use Bicubic. I don't want to have to do this, really! Hopefully it won't be too hard to add. Gwenview's code might be helpful: http://websvn.kde.org/trunk/extragear/graphics/gwenview/imageutils/scale.cpp Thanks, Christopher Martin
it should be fairly simple: krita has a scaling filter interface and it should be possible to implement a new filter very easily, once you understand the mathematics -- which I probably will never do.
Seems like this bug is fixed in 1.6 final. I scaled using Bi-cubic and it worked fine for me. I'd recommend even it be the default.
Correction, I found Bi-cubic did not work right in 1.6
3 days ago, I resized a large digikam pic to 450 width in krita for the web. The result was unusable, it was blurred. Tried it with 2-3 different algos, but not very long. So I reszied it with gimp.
3 days ago, I resized a large digikam pic to 450 width in krita 1.6.1 for the web. The result was unusable, it was blurred. Tried it with 2-3 different algos, but not very long. So I reszied it with gimp.
SVN commit 925647 by boemann: Disable Box, Mitchell,Lanczos3, BSpline,Bell scaling methods Rename Triangle to Biliniar Implement Bicubic (test shows it to be as good as photoshops), but it has a bug which gives some nasty sideeffect sometimes. BUG:129539 M +38 -6 kis_filter_strategy.cc M +11 -1 kis_filter_strategy.h WebSVN link: http://websvn.kde.org/?view=rev&revision=925647