On Tue, Sep 29, 2009 at 05:00:18PM +0200, Niels Kristian Bech Jensen wrote: > > > Date: Tue, 29 Sep 2009 16:32:58 +0200 > > From: [email protected] > > To: [email protected] > > Subject: [UFRaw-Devel] Hot pixel elimination > > > > One of my cameras appears to have a number of defective pixels which are > > clearly visible on dark backgrounds. Initially I thought these "hot" > > pixels are saturated (close) to rgbMax but apparently pixels can be > > "half-broken". The patch below implements a "shave" algorithm to eliminate > > these hot pixels. It has been designed to minimize visible damage on > > falsely detected hot pixels. The number of hot pixels is reported and they > > can be marked in the preview window in case one wonders where they are. > > > > I know this patch may not (yet) be going in because of an upcoming > > release but except for the manual page it is finished and may be useful. > > > Good work. I just think this should be integrated with support for the DCRaw > style ~/.badpixels file already supported by UFRaw. Maybe make it possible > to save such a file from the pixels marked in the preview window.
The half-broken pixels it can detect depends on the actual image. When a half-broken pixel still fits in the image it cannot be detected and it's not really visible (this actually occurred). But yes, the info could be saved for later use in a badpixel file. I noticed the badpixel mechanism earlier but decided that it's too clumsy: let the CPU do the dirty work instead of trying to figure out what the bad pixel coordinates are for every camera. -- Frank ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ ufraw-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ufraw-devel
