Quote:
Originally Posted by David Fitz-Henr
I believe you are correct here Rick; whilst upsizing and stacking can result in smoother data and some marginal improvement in resolution, the drizzling process is not the same and can produce much larger gains in resolution for undersampled images. There is a lot of information on the web about drizzling - here is a good site that explains the concept quite well with a worked example: http://www.asiaa.sinica.edu.tw/~whwa...zzle/index.htm
Bert, what is the image scale of your system (arcsecs / pixel)? |
My image scale is 3.08" per pixel.
I do understand information theory. Farting around with a single image is meaningless.
I dither my images by many pixels. This means I am sampling the same putative image many times.
I typically collect twenty plus images.
Bert