Quote:
Originally Posted by strongmanmike
What do you mean by artificially brightened?
For the faint halos I have revealed, I create several versions where I have stretched the begeezus out of the faint data to varying degrees and then I (very) carefully blend just the faint stuff revealed, back into a more normally processed version, I then use targeted noise reduction on the layered in heavily stretched data to make it a bit smoother.....this is not artificial but more like enhanced. I think as long as the stretching done before the layering is done globally on the raw data and not "artificially" targeted by say, lassoing an arbitrary area, it is a valid representation, particularly for scientific purposes.
Mike |
Point taken. Artificial was a poor choice of words and enhanced would be more appropriate. I use a global stretching too followed by Jay Gabany's layered contrast stretching which seems to work okay but you have to be careful with it.