Processing technique
Drizzle
A technique for combining many dithered exposures that recovers resolution lost to undersampling, by mapping each input pixel onto a finer output grid. Developed for the Hubble Space Telescope's deep fields, drizzling is now widely used in both professional and amateur imaging to sharpen stacks of slightly shifted frames.
Highlights
- ›Recovering resolution from many dithered, undersampled frames
Related techniques & equipment
Across the observing chain
Knowledge connections
- Associated withAstronomical Image Processing
- Associated withImage Stacking
- Associated withHubble Space Telescope
- Associated withAstronomical Image Processing
- Associated withPixInsight
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.