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Extract Raster bands

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07-13-2012 06:40 AM
laxpremkumar
New Contributor
Hello,

I have aerials, with different bands that need to be mosiaced together. Some aerials are (.tif with 4 bands), while the rest are (.sid with 3 bands).  I mosaiced the .tif, 4 band rasters together.  The problem is, I export the mosaiced raster as jpg, which does not support 4 bands. 
Question:

1) is there a way to extract the 4th band out of the mosaiced raster?
2) If so, can we combine the mosaiced raster with the .sid images, which have only 3 bands?
3) is there a method to export the mosaiced 4 band raster to jpg format?

Thanks.
lax
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