Astroart Forum

Yes, Einari, with Photoshop it can be done, but I wanted to know how to do it in Astroart !!
And with the new explanation of fabdev it worked perfectly! I just had to adjust the formula "v = vbkg * 3 - v" doing tests and in my case it goes perfect changing 3 by 2.1 ...
Thank you very much, fabdev

Thank you very much, Dunmunro and fabdev for your answers. I was able to do what I wanted by using a mask, thanks to fabdev's explanation, with a formula to invert the selected area. But I could not do it by the easiest way to paste an inverted image into the main image. So I must be doing something...

Hi all !! I am a new user of Astroart 7 and I have a doubt because I want to select a part of an image to enlarge it and put it in negative in the initial image (to highlight that part) but I can not see it in negative. I copy a selection of the initial image, I paste it as a new image and then I en...