Aligning To A Single Image

When To Do

There are times when auto correlating on the first attempt produces terrible correlation (1 0 1 command produces barely any * next to images). This occurs when the topography shown in all the images is not defined enough auto. To fix this problem it is best to choose an image that has the best visible features , by visual inspection, and then have all other images align to that distinct image.

How To Do

The commands to enter from the lithos main menu are.

13(image #)

The output will look like this.

Main Menu: Q 0123O IUCRSG NVAMBX DEPL FZH? 1 >1 0. Auto align 1. Individual shift 2. Global shift 3. Align with picture 4. Align with gradient q. Quit3 3 gc LMRK_DISPLAY0.pgm gc LMRK_DISPLAY1.pgm Enter key picture (0 for auto)0 j = 12 k picnm lambda phi cvg nlmk 1 S595063694F1 1.624 0.000 1.000 123 2 M595328241F0 1.013 0.000 1.000 347 3 M595414641F0 1.222 0.000 1.000 140 4 M595415038F0 1.197 0.000 1.000 171 5 M595415434F0 1.217 0.000 1.000 188 6 M595415831F0 1.262 0.000 1.000 203 7 M595416228F0 1.396 0.000 1.000 230 8 S595062704F1 1.175 0.000 1.000 173 9 S595063099F1 1.394 0.000 0.544 189 10 S595063212F1 1.483 0.000 1.000 202 11 S595063299F1 1.400 0.000 0.703 93 12 S595063602F1 1.389 0.000 0.886 190 13 S595063997F1 1.398 0.000 0.553 201 14 S595282021F2 0.174 0.000 0.802 112 15 S595281612F2 1.998 0.000 0.568 53 gc LMRK_DISPLAY0.pgm gc LMRK_DISPLAY1.pgm check display

Once the images are aligned to one image, then multiple iterations of auto correlation and reconstruction of template should be performed until alignment is optimal and topography is able to be made.