How to make a good photograph when there are 2 (or more) light sources that make over/sub-exposed zones ? You can't take a good shot even by bracketing :
How ?
Follow these explanations :
- Open AnaBuilder, and load the lighter photograph as left, and the darker as right. It buids an red anaglyph, but it is without interest.
- Ask for "Tools/Overex-subexp merger". The dark image should appear in a new panel. If you want you can resize it, but it doesn't matter.
- Set all fields to zero. And click to "merge". The light photograph should appear, perhaps with some merges with the darker
- Adjust the "Transp gap" in order to have the best transparency mask you can. This field is though to be between 0 and 3*255. With a value of zero, only the pure white is transparent. . With a value of 3*255, all colors are transparent, and you retrieve the whole dark image.
- Tune the "Transp bevel" in order to make a progressive transparency, in the color space (according to brightness levels).
- Tune the "Transp blur" in order to blur the transparency in the image space (according to pixels positions).
