WCS raster output black & white on ECW

Fri May 19 03:12:15 EDT 2006

In addition, this is the output when CPL_DEBUG is ON:

[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64] ECW:
NCScbmOpenFileView(/data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2005_40cm.ecw):
eErr = 0
[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64] ECW: FileInfo:
SizeXY=690000,800000 Bands=3
[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64]       
OriginXY=8000,624000  CellIncrementXY=0.4,-0.4
[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64]
[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64] ECW:
projection=LOCAL, datum=WGS84
[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64] GDAL:
GDALOpen(/data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2005_40cm.ecw)
succeeds as ECW.
[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64]
[Fri May 19 09:05:44 2006] [error] [client 145.50.90.64] ECWRasterBand:
RasterIO(nXOff=443174,nYOff=749014,nXSize=1254,nYSize=751 -> 1252x750)
[Fri May 19 09:05:45 2006] [error] [client 145.50.90.64] GDAL:
GDALClose(/data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2005_40cm.ecw)
[Fri May 19 09:05:45 2006] [error] [client 145.50.90.64]
[Fri May 19 09:05:45 2006] [error] [client 145.50.90.64] GDAL:
GDALDriver::Create(MEM,msSaveImageGDAL_temp,1252,750,4,Byte,(nil))
[Fri May 19 09:05:45 2006] [error] [client 145.50.90.64] ECW:
GetGDTProjDat(28992) = NUTM31/RD
[Fri May 19 09:05:45 2006] [error] [client 145.50.90.64] ECW: Writing with
PROJ=NUTM31, DATUM=RD
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64] ECW:
NCScbmOpenFileView(/data/OGC_UMN_services/tmp/ms_tmp/114802234574260.ecw):
eErr = 0
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64] ECW: FileInfo:
SizeXY=1252,750 Bands=4
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64]       
OriginXY=185270,324394  CellIncrementXY=0.40016,-0.4
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64]
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64] ECW:
projection=NUTM31, datum=RD
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64] GDAL:
GDALOpen(/data/OGC_UMN_services/tmp/ms_tmp/114802234574260.ecw) succeeds
as ECW.
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64]
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64] GDAL:
GDALClose(msSaveImageGDAL_temp)
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64]
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64] GDAL:
GDALClose(/data/OGC_UMN_services/tmp/ms_tmp/114802234574260.ecw)
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64]
[Fri May 19 09:06:00 2006] [error] [client 145.50.90.64] GDAL:
GDALDeregister_GTiff() called.

Best regards,
Bart

> Hi list,
>
> using Mapserver 4.8.3, GDAL 1.3.2 final and the latest ECW SDK we are
> running into a strange issue. This is on Red Hat Enterprise 3.
>
> We use Mapserver WCS to output rasters in ECW, Geotiff and MrSID format.
> If we use a Geotiff as a source, all output from Mapserver WCS is okay. If
> we use an aerial photo in ECW format as input, all output (ECW, MrSID as
> well as Geotiff) comes out black and white instead of colour. WMS output
> is just fine. Any ideas what could be causing this?
>
> Btw, a direct gdal_translate works fine and outputs in colour:
>
> [root at poseidon gdelivery]# gdal_translate -of "Gtiff" -projwin 185269.9
> 324394.4 185771.2 324093.7
> /data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2005_40cm.ecw
> /tmp/testbart.tif
> Input file size is 690000, 800000
> Computed -srcwin 443174 749014 1253 752 from projected window.
> 0...10...20...30...40...50...60...70...80...90...100 - done.
>
> These are the output formats used:
>
>   OUTPUTFORMAT
>     NAME "GEOTIFF"
>     DRIVER "GDAL/GTiff"
>     MIMETYPE "image/tiff"
>     IMAGEMODE "RGBA"
>     EXTENSION "tif"
>     FORMATOPTION "COMPRESS=PACKBITS"
>   END
>
>   OUTPUTFORMAT
>     NAME "ECW"
>     DRIVER "GDAL/ECW"
>     MIMETYPE "image/ecw"
>     IMAGEMODE "RGBA"
>     EXTENSION "ecw"
>   END
>
>   OUTPUTFORMAT
>     NAME "MrSID"
>     DRIVER "GDAL/MrSID"
>     MIMETYPE "image/mrsid"
>     IMAGEMODE "RGBA"
>     EXTENSION "sid"
>   END
>
> This is the gdalinfo output from the source ECW file:
>
> [root at poseidon gdelivery]# gdalinfo
> /data/geopakhuis/aerogrid_nl2005/Aerogrid_NL2005_40cm.ecw
> Driver: ECW/ERMapper Compressed Wavelets
> Size is 690000, 800000
> Coordinate System is:
> LOCAL_CS["LOCAL",
>     UNIT["Meter",1]]
> Origin = (8000.000000,624000.200000)
> Pixel Size = (0.40000000,-0.40000000)
> Corner Coordinates:
> Upper Left  (    8000.000,  624000.200)
> Lower Left  (    8000.000,  304000.200)
> Upper Right (  284000.000,  624000.200)
> Lower Right (  284000.000,  304000.200)
> Center      (  146000.000,  464000.200)
> Band 1 Block=690000x1 Type=Byte, ColorInterp=Red
>   Overviews: arbitrary
> Band 2 Block=690000x1 Type=Byte, ColorInterp=Green
>   Overviews: arbitrary
> Band 3 Block=690000x1 Type=Byte, ColorInterp=Blue
>   Overviews: arbitrary
>
> Thanks in advance.
>
> Best regards,
> Bart
>