Hi Stan
Its been a while since I have used deconvolution in CCDS having relocated to the US. I now have new data and I am back into it.
I take a FITS image, DDP, save as 16bit TIFF. I load this into CCDS, deconvolve using Pos Constraint and normally around 30 iterations. When I the save the deconvolved image as a 16bit TIFF, the resultant image is significantly darkened and 'muted'. Such that it is unusable. As I say, in the past, I have deconvolved a 16bit TIFF in CCDS and the saved image has not been altered in terms of its brightness.

any thoughts?
thanks
Martin

quote:

... save the deconvolved image as a 16bit TIFF, the resultant image is significantly darkened and 'muted'

Saving as unscaled 16 bit can easily result in a clipped image. If the data exceeds 16 bit number space, you should get a pop-up that warns and asks if you want to re-scale. Answer Yes.

That re-scaled data is not the same as the original 32 bit data and requires different display parms (min max DDP, etc.). But the full data range is there.

If you are importing the TIFF into photoshop or other paint programs then the image will look very dark and unusable because it is linear. You must rescale it. Or better yet, save it from CCDStack as "save scaled".

Stan

Great, thanks Stan