Hi Hadi, I assume you were using the panchromatic data from the PRISM sensor, and multispectral data from AVNIR? Is that right? I think that PRISM and AVNIR data are not automatically coregistered. You may need to coregister them before you try pan sharpening. What exactly happens when you try the pan sharpening? Do you get an error message? Or just results that don't look right? -Peg

Dear Peg Yes thats right. I used panchromatic data from the PRISM sensor, and multispectral data from AVNIR. I tested the image scen of both by google eartt is matched. But I got this error: "Unable to allocate memory: to make array." The result may be invalid. somtimes i Got no stesfied pan sharpening image. Thank you to give solution. Best, Hadi