Dear all,

I like to compress a Geotiff rastermap with compress=jpeg.


gdalinfo for a .vrt which I like to compress:

Coordinate System is:
PROJCRS["ETRS89 / UTM zone 32N",
    BASEGEOGCRS["ETRS89",
        DATUM["European Terrestrial Reference System 1989",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],

.

.


Band 1 Block=128x128 Type=Byte, ColorInterp=Palette
  Color Table (RGB with 256 entries)
    0: 255,255,255,255
    1: 255,255,255,255
    2: 255,255,255,255
    3: 191,230,230,255
    4: 153,255,179,255
    5: 230,255,204,255
    6: 191,242,128,255

.

.

gdal_translate dtk25.vrt -co COMPRESS=JPEG out.tiff

Input file size is 201600, 198400

0ERROR 1: JPEGSetupEncode:PhotometricInterpretation 3 not allowed for JPEG
ERROR 1: An error occurred while writing a dirty block from GDALRasterBand::IRasterIO
ERROR 1: JPEGSetupEncode:PhotometricInterpretation 3 not allowed for JPEG
ERROR 1: JPEGSetupEncode:PhotometricInterpretation 3 not allowed for JPEG


How can I compress this map, please?

Thank you!

KR

Piet

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