04-20-2017, 04:54 PM
(04-20-2017, 04:16 PM)Espermaschine Wrote: No, its the Levels Tool
My approach is more or less the same as ofnuts', just with another tool.
The Levels Tool has inbuild colourdroppers you can use to click in the image and define that as the white/black point, depending on which of the two droppers you use.
See here for more information:
https://docs.gimp.org/2.6/en/gimp-tool-levels.html
Yes, but there is nothing you can do with Levels that you can't do with Curves. The benefit of Curves here is that you can easily ensure that nothing happens in the left part of the histogram, which the OP wants to keep unscathed.
Btw in Curves, if you click in the image, it draws a vertical line on the histogram corresponding to the value of the pixel you clicked on.