04-23-2018, 03:17 AM
https://imgur.com/a/HbN2Zr1
So here's a typical image I'm looking at cleaning up. It's nice because it has very little actual information except at the right edge. I see three specific issues to deal with. The first is the how the image is hot in the middle and every one has a similar darkening in the middle compared with the edge. In this image it can only be seen by the splotchiness of the blank part of the image, which is the second problem. This causes some of the dark parts of the splotches to be darker than the lighter parts of the lines in the drawing at the edge, so a simple level curves didn't get the results I was looking for. I had some success just working with the brightness contrast control, but it ended up loosing some of the crispness of the drawing or having the lighter lines fade into oblivion. This is the third problem. I want as much detail as possible to bring out the original lines of the drawing.
Any suggestions on approaches to solve these problems would be welcome.
Thanks,
-Kirby
So here's a typical image I'm looking at cleaning up. It's nice because it has very little actual information except at the right edge. I see three specific issues to deal with. The first is the how the image is hot in the middle and every one has a similar darkening in the middle compared with the edge. In this image it can only be seen by the splotchiness of the blank part of the image, which is the second problem. This causes some of the dark parts of the splotches to be darker than the lighter parts of the lines in the drawing at the edge, so a simple level curves didn't get the results I was looking for. I had some success just working with the brightness contrast control, but it ended up loosing some of the crispness of the drawing or having the lighter lines fade into oblivion. This is the third problem. I want as much detail as possible to bring out the original lines of the drawing.
Any suggestions on approaches to solve these problems would be welcome.
Thanks,
-Kirby