AWARE SYSTEMS
TIFF and LibTiff Mail List Archive

Thread

2003.12.03 06:20 "[Tiff] Double Precision TIFF images", by Chris Cox
2003.12.03 18:40 "[Tiff] Double Precision TIFF images", by Frank Warmerdam
2003.12.04 21:11 "[Tiff] Double Precision TIFF images", by Antonio Scuri
2003.12.04 21:22 "[Tiff] Double Precision TIFF images", by Frank Warmerdam
2003.12.05 21:23 "[Tiff] Double Precision TIFF images", by Chris Cox
2003.12.05 04:18 "[Tiff] Double Precision TIFF images", by Chris Cox

2003.12.04 21:22 "[Tiff] Double Precision TIFF images", by Frank Warmerdam

Could you check that image? The Photometric is BlackIsZero, but I guess it should be RGB.

It is interesting that BitsPerSample and SampleFormat have 3 values, and the file size is also compatible with a RGB double image.

Antonio,

You are correct that the photometric interpretation is set wrong. It should be RGB. However, MINISBLACK is also a legitimate photometric interpretation for multi-sample files... it just obscures how the samples can be treated in combination to form colors.

Best regards,

---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent