| Slit Image Test | |||
| Overview | Computations | Alignment/Imaging | Home |
| The orginal image is a 24 meg tiff file, which was cropped and then jpg'ed down to 660 k. Do to the jpg compression and cropping your results will not exactly match that of the web. |
| For example: |
| After Photoshop Rotate Arbitrary CCW 2.97 of the jpg image, I get 165 pixels for the left outer slit, and 3202 for the right outer slit. The difference is 3037 pixels. The web site difference (3225-188) is 3037 pixels. |
| The web zone pixel differences are: |
| 13.8% | 467 |
| 27.6% | 931 |
| 41.5% | 1389 |
| 55.3% | 1835 |
| 69.1% | 2258 |
| 82.9% | 2662 |
| 96.7% | 3037 |
| To get the image click here and then do a File->Page Save As |
|
© 2008 Bill Thomas mailto:bthomas32000@yahoo.com |