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January 2004
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2004.01.23 07:39 "Re: How to convert MINISBLACK to PHOTOMETRIC_RGB", by Andrey Kiselev
On Thu, Jan 22, 2004 at 10:48:14PM -0600, Pushkar Pradhan wrote: > When I create a subset image (to take only 3 bands out of 6) IMAGINE > software creates a MINISBLACK TIF file (there seems to be no option to > change this). This is what tiffinfo reports: > Bits/Sample: 8 > Sample Format: unsigned integer > Compression Scheme: None > Photometric Interpretation: min-is-black > Extra Samples: 2<unspecified, unspecified> > Orientation: row 0 top, col 0 lhs > Samples/Pixel: 3 > Now I want to read this file in MATLAB whose TIFF reader is limited to > reading RGB and PALETTED images (that too only 8-bit and 16-bit). Thus > it only reads the 1st band of this file. I saw there is utility > pal2rgb but is there something similar to min-is-black images to RGB > interpretation? You can rewrite such files using GDAL software. I have implemented Photometric setting as an option to the TIFF driver per your recent request. You can try to do something like: $ gdal_translate -of GTiff -co "PHOTOMETRIC=RGB" bad.tif good.tif Don't forget that you will need latest GDAL snapshot. Andrey -- Andrey V. Kiselev Home phone: +7 812 5274898 ICQ# 26871517