When running Speckle filtering on a GRD image, I am finding that the spatial reference (map info in ENVI terms) is missing from ENVI format outputs. For example, this is the header information:
ENVI
description = {null - Unit: intensity}
samples = 25145
lines = 16791
bands = 1
header offset = 0
file type = ENVI Standard
data type = 4
interleave = bsq
byte order = 1
band names = { Sigma0_VV }
data gain values = {1.0}
data offset values = {0.0}
There is no “map info” or “coordinate system string”.
Thank you.