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I am using GDAL_merge to merge several geotiff tiles into one large tile. One of the creation options I can add is photometric. There are several options for this.

  • RGB
  • CMYK

What are the differences between these different outputs? I understand the MINISBLACK and MINISWHITE options, but the others are less clear.

Thanks in advance.

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up vote 1 down vote accepted

The chosen value is stored in the PhotometricInterpretation TIFF tag, which defines the color space, i.e. how to interpret the values of the bands. Example for a 3-band GeoTIFF defined as RGB: band 1 = red, band 2 = green, band 3 = blue. CMYK stands for the Cyan, Magenta, Yellow, blacK color space, etc.

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Do you also know what the "LAB" values stand for? Can they also be related to different colors? – Freeze Aug 26 '13 at 10:47
You might wish to read: – Hermann Aug 26 '13 at 14:49

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