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You need to assign no data value when you run the gdal_merge using -n nodata_value. First use a value of 255, if 255 didn't work, then use a value of 0. Other software use a value of 0 as no data value, but for gdal merge it uses 255. You can refer to this answerthis answer as background on this issue.

You need to assign no data value when you run the gdal_merge using -n nodata_value. First use a value of 255, if 255 didn't work, then use a value of 0. Other software use a value of 0 as no data value, but for gdal merge it uses 255. You can refer to this answer as background on this issue.

You need to assign no data value when you run the gdal_merge using -n nodata_value. First use a value of 255, if 255 didn't work, then use a value of 0. Other software use a value of 0 as no data value, but for gdal merge it uses 255. You can refer to this answer as background on this issue.

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ahmadhanb
ahmadhanb
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You need to assign no data value when you run the gdal_merge using -n nodata_value. First use a value of 255, if 255 didn't work, then use a value of 0. Other software use a value of 0 as no data value, but for gdal merge it uses 255. You can refer to this answer as background on this issue.