we have an 8 bit image which has some white areas which we would like to remove.
but it would help us a lot if we knew how to make 32bit out of 8bit.
Thank you
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You can try the RasterInterpretationCoercer.
You can try the RasterInterpretationCoercer.
This we have tried but it always led to an error message
This we have tried but it always led to an error message
What settings did you try and what was the error message?
You can try the RasterInterpretationCoercer.
Error:
RasterInterpretationCoercer_<Rejected>: Termination Message: 'RasterInterpretationCoercer output a <Rejected> feature. To continue translation when features are rejected, change 'Workspace Parameters' > Translation > 'Rejected Feature Handling' to 'Continue Translation''
@fluusha
You need to check the rejected object. There will be a message specifying (if your lucky) the error in more detail.
What is the input raster? Do you have a sample?
8 bit:
rgba32 = 4x8
rgb24 = 3x8.
@fluusha
You need to check the rejected object. There will be a message specifying (if your lucky) the error in more detail.
What is the input raster? Do you have a sample?
8 bit:
rgba32 = 4x8
rgb24 = 3x8.
only 8 bit
only 8 bit
If it's PNG it's probably using a pallette. Try the RasterPalletteResolver first, then the RasterInterpretationCoercer.
only 8 bit
bithdept (Bittiefe) doesn't mean its a single band png.
Check the png by using a datainspector and look at the feature information window.
Or use a rasterpropertyextractor to get the info.
It hink @redgeographics is right:
I did this on a png after adding a pallete and get the error u have:
RasterInterpretationCoercer_<Rejected>: Termination Message: 'RasterInterpretationCoercer output a <Rejected> feature. To continue translation when features are rejected, change 'Workspace Parameters' > Translation > 'Rejected Feature Handling' to 'Continue Translation''
if you check the rejected feature you see the following:
@ReinterpretRaster: In RASTER mode, if any bands contain palettes then the requested interpretation may only be one of 'UINT8, UINT16, UINT32'
So either use unisgned 32 (uint32) or as Red said, remove the palette.
Resolving replaces the bandcell values with the palette values. I wonder if you want that.