GroupBy - Merge Image: Pixel type BitType not supported for merging. - Githubissues

knime-ip / knip

KNIME Image Processing Extension

https://www.knime.com/community/image-processing

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GroupBy - Merge Image: Pixel type BitType not supported for merging. #514

Open imagejan opened 5 years ago

imagejan commented 5 years ago

WTF? Why can't BitType images not be merged with the GroupBy node, but get merged just fine using the Merger node? This limitation seems unnecessary, and the special casing going on here is not very imglibby:

https://github.com/knime-ip/knip/blob/f284f3dae7f853a7523c88e0915f7562910e4ade/org.knime.knip.base/src/org/knime/knip/base/data/aggregation/ImgMergeOperator.java#L566-L585

Example workflow to reproduce the issue:

BitType Merging.zip