Bug report #333
indexed GeoTIFF raster displays grayscaled
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Low | ||
| Assignee: |  Tim Sutton | ||
| Category: | Rasters | ||
| Affected QGIS version: | Regression?: | No | |
| Operating System: | Windows | Easy fix?: | No |
| Pull Request or Patch supplied: | Resolution: | fixed | |
| Crashes QGIS or corrupts data: | Copied to github as #: | 10392 |
Description
I am using the Windows version of v0.8 "Titan" Preview 2.
The GeoTIFF file is an 8-bit color raster that has an indexed palette, but it tries to display it as grayscaled values.
My GeoTIFF Specs from tiffinfo
$ tiffinfo.exe O34086-G7.TIF TIFFReadDirectory: Warning, O34086-G7.TIF: unknown field with tag 33550 (0x830e) encountered. TIFFReadDirectory: Warning, O34086-G7.TIF: unknown field with tag 33922 (0x8482) encountered. TIFFReadDirectory: Warning, O34086-G7.TIF: unknown field with tag 34735 (0x87af) encountered. TIFFReadDirectory: Warning, O34086-G7.TIF: unknown field with tag 34737 (0x87b1) encountered. TIFF Directory at offset 0x522f48 Image Width: 4774 Image Length: 5784 Resolution: 1, 1 (unitless) Bits/Sample: 8 Sample Format: unsigned integer Compression Scheme: [[PackBits]] Photometric Interpretation: min-is-black Orientation: row 0 top, col 0 lhs Samples/Pixel: 1 Rows/Strip: 1 Planar Configuration: single image plane Color Map: (present) Software: IMAGINE TIFF Support Copyright 1991 - 1999 by ERDAS, Inc. All Rights Reserved @(#)$RCSfile: etif.c $ $Revision: 1.11 $ $Date$ Tag 33550: 2.400000,2.400000,0.000000 Tag 33922: 0.000000,0.000000,0.000000,511424.042000,3859011.495000,0.000000 Tag 34735: 1,1,0,6,1024,0,1,1,1025,0,1,1,1026,34737,236,0,3072,0,1,26716,3073, 34737,209,236,3076,0,1,9001 Tag 34737: IMAGINE [[GeoTIFF]] Support Copyright 1991 - 2001 by ERDAS, Inc. All Rights Reserved @(#)$RCSfile: egtf.c $ $Revision: 1.11.2.3 $ $Date: 2004/11/24 09:12:56EST $ Projection Name = NAD_1927_UTM_Zone_16N Units = meters [[GeoTIFF]] Units = meters|IMAGINE [[GeoTIFF]] Support Copyright 1991 - 2001 by ERDAS, Inc. All Rights Reserved @(#)$RCSfile: egtf.c $ $Revision: 1.11.2.3 $ $Date: 2004/11/24 09:12:56EST $ UTM Zone 16N Ellipsoid = Clarke 1866 Datum = NAD27|
History
#1
Updated by Redmine Admin almost 18 years ago
Sample is available upon an email request. It is about 1.8MiB Zipped.
#2
Updated by Gavin Macaulay - almost 18 years ago
It displays fine for me under Linux with gdal 1.3.2. I suspect that the problem is with gdal rather than qgis - hopefully the next windows package of qgis will use 1.3.2 and should fix the problem.
#3
Updated by Gavin Macaulay - almost 18 years ago
With gdal 1.3.1 under linux the file also displays incorrectly, so this appears to be a gdal problem that is resolved in 1.3.2. The next windows build of qgis should then fix this ticket.
#4
Updated by Gavin Macaulay - almost 18 years ago
- Resolution set to fixed
- Status changed from Open to Closed
The preview of the windows preview 3 version of qgis, which uses gdal 1.3.2, fixes this problem.
#5 Updated by Anonymous about 15 years ago
Milestone Version 0.8 deleted