Is it possible to open NRW (raw format) files from a NIkon p600 camera with ENVI?
I need to obtain radiometric information from the original (NRW) data.
Hi Massimo
It would be better to ask this question at the following forum site:
http://forums.adobe.com/message/2224557
Hi Mohamad,
not knowing ENVI, but I do not suppose ENVI coud be able to directly open a camera RAW format. The best way in most cases could be to save such file in TIF (TIFF) format. TIF is very versatile, it should be able to save the RAW without information loss (i.e. as 16 bit, even not demosaicked if needed, but most software would probably demosaick the RAW before export, which I suppose is better for processsing it in ENVI), as oposed to saving in 8-bit lossy-compression JPG (JPEG). TIF should then be readable in ENVI. You can check if your RAW processing software supports more than 8-bit TIF export. If not, opensource RAW Therapee can do this: http://rawtherapee.com (and probably other free RAW processing programs, but I use this one). The process if trying to get unchanged pixel values (except demosaicking) for quantitative studies would be
1. open the RAW in RAW procesing software
2. (optional) undo any processing the software could do automatically upon loading the file (contrast stretching, sharpening...)
3. save it as TIF, probably 16bit TIF.
The result should be three channel RGB 16bit TIF file with the same pixel values for individual colors as in the original RAW, only that the pixels which were not covered for given color in the original mosaicked one-channel RAW will be interpolated by the demosaicking algorithm.
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