---------- Forwarded message ---------- From: Jianhui Jin <jianhui....@gmail.com> Date: Tue, May 4, 2010 at 9:27 PM Subject: WoldImageWriter write false copy of gridcoverage. To: geotools-gt2-users@lists.sourceforge.net
Hi All I am learning to write out a raster file as images. using WorldImageWriter produce false result when I try to read in a raster then output the exact gridcoverage: String roofRaster = "C:/Users/OSData/Raw/Bournemouth-03_002_8bit_25cm_o.tif"; String outputRasterPath = "C:/Users/output/raster/RasterWriteOutTest.tif"; AbstractGridCoverage2DReader roofAbstractGridCoverage2DReader; AbstractGridFormat format = GridFormatFinder.findFormat(roofRaster); roofAbstractGridCoverage2DReader = format.getReader(new File(roofRaster)); GridCoverage2D roofCoverage = roofAbstractGridCoverage2DReader.read(null); WorldImageWriter imageWriter = new WorldImageWriter(new File(outputRasterPath)); imageWriter.write(roofCoverage, null); simple codes, however, the output does not look the same as the input tiff, and i have build a statistics for both in ArcGIS, the min and max in the input is 0 to 255 for the first 3 bands, and 0 to 16 for the band 4, but the output raster is 0 to 16 for the first 3, and 0 to 1 for the band 4. Thank you very much Jin. ------------------------------------------------------------------------------ _______________________________________________ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
