====== Differences ====== This shows you the differences between two versions of the page.
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badseed [2007/03/08 23:01] bphilibo |
badseed [2010/03/04 23:54] (current) das |
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| This most frequently occurs when ROI_PAC starts unwrapping the image in a decorrelated area. | This most frequently occurs when ROI_PAC starts unwrapping the image in a decorrelated area. | ||
| - | To correct this problem, edit the param.txt file giving a good seed point to start the unwrapping: | + | To correct this problem, edit the ''param.txt'' file giving a good seed point to start the unwrapping: |
| - | - Use mdx.pl to open the file ''phase_var_ODR_4rlks.msk'' | + | - Use mdx.pl to open the file ''phase_var_ODR_4rlks.msk'' from the ''INT'' directory |
| - | - View the phase image band by clicking RGB_Hgt button | + | - View the phase image channel by clicking RMG_Hgt button. You may need to change the color scale mode in the RMG-Hgt Parameters box in order to see the correlated areas if the image is very decorrelated. (On a Mac this box is accessed by holding the Apple key and clicking the RMG-Hgt button.) |
| - | - Clicking a point in the image will display the X and Y coordinates at the top left of the display, followed by the correlation value. Choose a point that has a high correlation (at least 0.7, 0.9 is better) and note the coordinates. | + | - Clicking a point in the image will display the X and Y coordinates at the top left of the display, followed by the amplitude value, and finally the correlation value. Choose a point that has a high correlation (at least 0.7, 0.9 is better) within a generally well-correlated region and note the coordinates. |
| - | - Add the following lines to the param.txt file: | + | - Add the following lines to the ''param.txt'' file, substituting the coordinates of the chosen point:\\ ''unw_seedx=//(x coordinate)//'' \\ ''unw_seedy=//(y coordinate)//'' |
| - | ''unw_seedx=[//x-coordinate//]''// | + | - Delete any ''*.flg'' files in the ''INT'' directory |
| - | ''unw_seedy=[//y-coordinate//]'' | + | - Run ''process_2pass'' starting at 'filtered':\\ ''$ process_2pass.pl param.txt filtered done'' |
| - | - Delete any *.flg files in the INT directory | + | |
| - | - Run ''process_2pass'' starting at 'filtered': | + | |
| - | ''$ process_2pass.pl param.txt filtered done'' | + | |
| - New output files will be created. | - New output files will be created. | ||