krosemanp

Cleaning edges of raster

Discussion created by krosemanp on Sep 30, 2013
Latest reply on Oct 8, 2013 by hlzhang1022
I have a compressed 3-band SID image with "unclean" whitespace (not NoData) on the edges. I want to set the space between the black area (actual image) and the footprint (light green lines) to NoData or to a single value (255,255,255 or 0,0,0).

The attached image explains the result I am looking for. I used a stretched symbology with min value 250 (black) and max 255 (white) to show the "garbage" along the edge.

What would be the best process to use to clean these images?

Thanks.

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