Version: (using KDE KDE 3.4.1)
Installed from: Debian testing/unstable Packages
It would be nice to have an option set the quality level for png's, at least like the slider you have for saving jpeg's.
On Tue, 28 Jun 2005 10:26 pm, Joerg de la Haye wrote:
> It would be nice to have an option set the quality level for png's, at
> least like the slider you have for saving jpeg's.
Aren't PNGs lossless?
They are. But you can choose a compression level.
It uses the deflate-algorithm, according to wikipedia.org. It can be found also in ZIP, GZIP and for TIFF. As the usage in ZIP shows, it's lossless.
I've chosen a wrong title for my bug, "quality option for saving png's" is completely incorrect, it has to be "compression level option for saving png's".
I've had a look at the GIMP, they have these option; other KDE programs like krita or kooka don't have it.
Technically, it can be set by QImageIO::setQuality with a 0 (zero) as parameter (that would be the same as gzip -9)
However in KDE there is an history of not letting the user select the gzip compression level. (It cannot be done in KTar and KZip either.)
Have a nice day!
On Wednesday 29 June 2005 16:24, Nicolas Goutte wrote:
> However in KDE there is an history of not letting the user select the
Sorry I meant "zlib" here.
> compression level. (It cannot be done in KTar and KZip either.)
(KTar supports gzipped files too.)
> Have a nice day!
Reassigning bugs to KolourPaint support email address.