Cosmetic Correction Real Time Preview not showing

[glatiak]

This is probably a stupid new user trick, but I am trying to use CosmeticCorrection to remove some bad dark and light columns in a set of CCD images from an SBIG camera. When I processed my luminance images I got a preview window and was able to adjust the light and dark sigma values to make the column errors vanish. But when I started on a new set of images the preview window would not open. What am I missing? Restarting PI does nothing...

greg latiak

[pfile]

CC is a little weird in that it operates on a list of files, but when it shows a real-time preview, it does so on the topmost (selected) image on your desktop. do you have any images open? also make sure to tick one of the 3 detection options (master dark, auto detect or defect list) and configure them appropriately.

rob

[glatiak]

Thanks. I went through Warren's book again last night -- my own CMOS cameras are pretty clean so I don't often play with CC. Saw the discussion about having an image open and was able to reproduce that. But it is different from all the other realtime previews that I have used. When I make a change, sometimes the displayed preview changes, sometimes it doesn't. But on all the others, the circle in the upper left corner of the preview spins while the function is processing. So which settings correspond to an acceptable result is more of a mystery than perhaps it could be.

greg

[pfile]

it might be helpful to run the RT preview against a smaller section of the image so that you can see the individual pixels. just define a preview on your image and run the RT preview on that.

rob