• Aligning to a Single Image

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.

1
3
(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. Quit
3
 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.