= Stage 2 - Adding Images =

Most of the blocks in Stage 2 are similar to those in Stage 1. For those blocks, the commands will be the same.  The major difference in Stage 2 is the use of autoregister. The following diagram shows the general process for Stage 2.

{{attachment:stage2_figure.jpg||width="700"}}

'''Figure 00: Block Diagram for Adding Images'''

Autoregister loads existing landmarks into a new image.  When you give it an image, it locates all landmarks that fall within its boundaries.  Then you can use auto-align (just as in LITHOS).  You can also do auto-eliminate and set the star flag for building a template. This generates LMRK_DISPLAY1.pgm which shows pairs of landmarks for the image.

The following table shows the blocks, the procedures and the programs used to complete Stage 2:

'''Table 00: Procedures for Adding Images'''

||'''Block'''||'''Procedure Name'''||'''Executable'''||
||[[Block 2 - Ingest V0| Block 2]] || Ingest || [[process_fits]], [[make_sumfiles]]||
||[[Block 3 - Register V0|Block 3]] || Register || [[register]], [[make_scriptR]] ||
||[[Block 4 - Autoregister V0|Block 4]]|| Autoregister || [[autoregister]]  ||
||[[Block 5 - Iterate V0|Block 5]] || Iterate || [[lithos]], [[lithosP]], [[make_scriptP]] ||
||[[Block 7 - Clean V0|Block 7]] || Clean || [[residuals]], [[densify]]||


Once you have built the initial shape in Stage 1, it will replace the Nolan radar shape model stored in the SHAPEMODELS directory.  This allows a more effective image projection and registration when ingesting new images.