- Point Spread Functions (PSFs)
- Sampled PSFs
Sampled PSFs
Sampled PSF models
Ideally, rather than relying on a single synthetic PSF, multiple Point Spread Functions are provided instead, by means of carefully selected samples. These samples should take the form of. isolated stars on an even background that do not over expose, nor are too dim. Ideally, these samples are provided for all areas across the image, so that the module can analyse and model how the PSF changes from pixel-to-pixel for all areas of the image.
You may also be interested in...
- Step 2: Inspect your dataset (under Quick Start)
Coma or elongated stars towards one or more corners of the image.
- Usage (under Color)
The Color module is very powerful - offering capabilities surpassing most other software - yet it is simple to use.
- Introduction (under Features & Documentation)
You are forgiven if, at first glance, you get the impression StarTools offers only the basics.
- The Auto Feature (under Usage)
Edges > Threshold; selects all pixels that are likely to belong to the edge of a feature.