hi !
i had cit-files (microstation) to convert into ecw.
in the first step i transform into tiff by:
gdal_translate -of GTiff image.cit image.tif
if i get the image-properties by gdalinfo i get following:
C:\Program Files (x86)\FWTools2.4.7>gdalinfo
"D:\Duelmen\Musterdaten\g8744-1.tif
"
Driver: GTiff/GeoTIFF
Files: [pATH]\g8744-1.tif
Size is 16002, 8619
Coordinate System is `'
Origin = (-947485262.477377770000000,-1221704414.522622100000000)
Pixel Size = (3224.954755655543500,-3224.954755655543500)
Image Structure Metadata:
INTERLEAVE=BAND
Corner Coordinates:
Upper Left (-947485262.477,-1221704414.523)
Lower Left (-947485262.477,-1249500299.562)
Upper Right (-895879536.477,-1221704414.523)
Lower Right (-895879536.477,-1249500299.562)
Center (-921682399.477,-1235602357.042)
Band 1 Block=16002x1 Type=Byte, ColorInterp=Palette
Color Table (RGB with 256 entries)
0: 255,255,255,255
1: 0,0,0,255
....
255: 0,0,0,255
the image in preview is ok !
now i convert into ecw by:
gdal_translate -of ECW image.tif image.ecw
after start the command i get the information:
Input file size is 16002, 8619
Warning 6: ECW driver ignores color table. The source raster band will
be consid
ered as grey level.
Consider using color table expansion (-expand option in gdal_translate)
0...10...20...30...40...50...60...70...80...90...100 - done.
but now ! the image is only BLACK !!!!
can andyone tell me how the command had to be for
"Consider using color table expansion (-expand option in
gdal_translate)" ???
regards Jan :-)
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