Example of Multipoint Tri-Color Registration
| Veil Nebula by Robert Bickel | |
Telescope: |
Robert Bickel's 8" Homemade Newtonian. Roberts's webpage |
| Film & Exposure: | Red, Green and Blue filtered images on Tech Pan 2415 |
| Other Info: | Images provided by Chuck Vaughn as an example of a registration challenge |
| Processing: | |
| Stacked using Multipoint Feature of Picture Window | |
| 30 Points Registration using the default Hardy Method with R=0.2 | |
| Levels adjusted in PhotoShop 5.0 | |
Closeup 1:1 Comparisons of 2 Point vs 30 Point Registration
2 Point - Shift/Rotate/Scale |
30 Point Hardy Registration with R=0.2 |
 |
| The above comparison shows the dramatic improvement offered by Picture Window multipoint stacking. This Veil Nebula example had non-linear distortion which varied across the frame for each of the three images. Non-linear variation also exists in low cost scanners which has been the primary inhibitor to high quality image stacking. |
Return to AF9Y WebPage on Moonbounce and Weak Signal Detection