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Quality of Red Eye reduction?
Posted: Fri Jul 16, 2004 8:30 am
by dvesic
Hello.
Is it possible to specify range of the "red" which should be removed when applying Red Eye correction?
Or even optional mapping table for this (Map this color to this etc)?
Thanks.
Re: Quality of Red Eye reduction?
Posted: Fri Jul 16, 2004 8:18 pm
by helmut
dvesic wrote:Is it possible to specify range of the "red" which should be removed when applying Red Eye correction?
Or even optional mapping table for this (Map this color to this etc)?
At the moment, both range and mapping are not supported for red eye reduction. These would be both useful features, I think.

If not just the eyes are "corrected" but also other parts of the face:
1. Undo the correction (Edit->Undo, Toolbar or Ctrl+Z)
2. Zoom the image a bit
3. Mark one red eye, only
4. Apply the red eye correction, again.
5. Repeat 1-4 for the second red eye.
Posted: Fri Jul 16, 2004 8:29 pm
by Guest
If not just the eyes are "corrected" but also other parts of the face:
1. Undo the correction (Edit->Undo, Toolbar or Ctrl+Z)...
Does this mean that algorithm is "smart" or just by enlarging selection XnView applies red -> gray to the wider part of the picture?
Thanks.
Posted: Fri Jul 16, 2004 8:44 pm
by helmut
Anonymous wrote:If not just the eyes are "corrected" but also other parts of the face:
1. Undo the correction (Edit->Undo, Toolbar or Ctrl+Z)...
Does this mean that algorithm is "smart" or just by enlarging selection XnView applies red -> gray to the wider part of the picture?
I don't know the details of the algorithm. BTW, the algorithm has changed in one of the last XnView versions. My hint above is just my experience with the photos that I have corrected using XnView. The smaller the selection, the better was my result.
Perhaps other users or Pierre can post here, how the Red Eye correction works best.