Search found 2 matches
- 10 Jun 2020, 23:33
- Forum: Image processing and analysis
- Topic: Precision loss during stacking when input is in integer FITS format
- Replies: 2
- Views: 2547
Re: Precision loss during stacking when input is in integer FITS format
Hi Fabio. Thanks for the swift reply. If the external software accepts 32bit floating point, why to average at all? Just send him the result of the Sum. This will permit an easier calculation of the S/N of stars, since the number of images is variable. That's true, but again, even when doing a sum o...
- 10 Jun 2020, 17:08
- Forum: Image processing and analysis
- Topic: Precision loss during stacking when input is in integer FITS format
- Replies: 2
- Views: 2547
Precision loss during stacking when input is in integer FITS format
Hi all, The task I want to perform in AstroArt7 is the following: I want to stack many (sometimes a lot) of FITS images, and then do photometry on them with an external software. The input : - Out of the camera: 16 bit integer FITS , light and dark frames - A single master flat frame, 32 bit floatin...
