[FWTools] get gdal_translate black image

GISGuru jeremiahosullivan at gmail.com
Wed Apr 18 07:31:30 EDT 2007


Hi,

I am trying to translate some ecws to tiffs using gdal_translate. 

The simple command
C:\Program Files\FWTools1.2.2\bin>gdal_translate  test.ecw test.tif 

works ok

When I try to the file size down by issue the folloing command
C:\Program Files\FWTools1.2.2\bin>gdal_translate -co "COMPRESS=JPEG" -co
"TILED=YES" test.ecw test.tif 


I get a black image back


Any idea of what is happing here is my gdalinfo for the ecw


Thanks,


Driver: ECW/ERMapper Compressed Wavelets

Size is 3312, 3715

Coordinate System is:

LOCAL_CS["LOCAL",

    UNIT["Meter",1]]

Origin = (317779.375000000000000,265348.294999999980000)

Pixel Size = (1.250000000000000,-1.250000000000000)

Corner Coordinates:

Upper Left  (  317779.375,  265348.295)

Lower Left  (  317779.375,  260704.545)

Upper Right (  321919.375,  265348.295)

Lower Right (  321919.375,  260704.545)

Center      (  319849.375,  263026.420)

Band 1 Block=3312x1 Type=Byte, ColorInterp=Red

  Overviews: arbitrary

Band 2 Block=3312x1 Type=Byte, ColorInterp=Green

  Overviews: arbitrary

Band 3 Block=3312x1 Type=Byte, ColorInterp=Blue

  Overviews: arbitrary

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