npaust

I've been playing with the beta and getting frustrated because it seems like the ability to do what I want is there, but I can't get it to work. I'm an astronomer and part of my work is making composite color images of the objects that I observe. Professional astronomical images are always greyscale images taken in a particular color of light. In order to make a color image then, you (in photoshop at least) copy three individual greyscale images into the RGB color channels, make sure that the stars are aligned, and then adjust the color balance between the channels. While I see that Affinity Photo has the ability to display the RGB channels, I'll be damned if I can paste my individual images into them. Also, I ran into a problem with the 16-bit tiff greyscale images that I was using. When Affinity Photo read them in, they got chopped into four rows and the rows were displayed in random order. Other programs (like Preview) had no problem displaying them. So, is there some trick to actually using the color channels?

I use desktop design software mostly for my astronomical work creating color images of objects. The standard astronomical format is a .fits file which typically contains a 16-bit greyscale image. To create a color image, you take pictures with three different filters and then paste the greyscale images into the RGB channels in your colorized image. After that, you typically have to offset the different channels by a few pixels relative to each other to get the objects aligned. If Affinity could do that, I'd buy it immediately!