We have some jp2 or img satellite images that we compress to .ecw using ERDAS Imagine. We have realized that with some images we are losing too much information while doing that. What i wanted to ask is about preferences on ERDAS Imagine.
Target ECW Compression (Greyscale): Value
Target ECW Compression (RGB): Value
Target ECW Compression (Multispectral): Value
Do I need to adjust them each time I compress an image or is there an optimal setting that i can use?
(We are using mostly 16 bit satellite images as input)
Or where else could the problem be that the ecw files are so foggy and unsharp compared to the input files.
Thanks in advance,