Topic: Error message during correlation
while running the correlation, a COSI-Corr user experienced a system error which stated:
"CORRELATION_IMG --> Subscript range values ot the form low:high must be >= 0, < size, with low <= high: MASTER."
The reason of such error is usually to be found among the three following causes:
- non-overlapping images. The overlap is cartographically based, i.e., images must overlap geographically and not only "visually".
- a too small overlapping area between the images. For exemple if you choose a correlation window of 64x64 pixels, the overlapping area needs to
be at least of 128x128 pixels.
- an improper configuration of ENVI. In the ENVI File -> Preferences -> Miscellaneous, make sure you have the Cache size of at least 300 MB, and and Image Tile Size around 40.00MB. You can refer to the COSI-Corr manual section 2.2.
So if you're running into the same error, make sure that each point above is verified.
PS: Do not hesitate to post your error messages or questions on the forum so each of us can learn and profit from it....