STScI

The MultiDrizzle Handbook

TOC PREV NEXT INDEX PDF

Chapter 2:
Introduction to Dithering


2.1 What is Dithering?
2.2 Benefits of Dithering
2.3 Costs and Drawbacks of Dithering
2.4 Observational Dither Strategies
    2.4.1 No Dithering
    2.4.2 Simple Dithering
    2.4.3 "Full" Dithering
    2.4.4 Dithering for Parallel Images
2.5 More Detailed Considerations
    2.5.1 Data Quality Issues involved in Dithering
    2.5.2 How Many Dither Positions - 2, 3, 4 or more?
    2.5.3 Data with Inaccurate Offsets in Position or Roll Angle
    2.5.4 How many Images to Obtain at each Dither Location
    2.5.5 Specific Instrument Related Issues

Space Telescope Science Institute
http://www.stsci.edu
Voice: (410) 338-1082
help@stsci.edu
TOC PREV NEXT INDEX PDF