I try to run example on KNIME 3.7 and getting error ERROR Gaussian Convolution 0:37 Error in row image1-mask.jpeg: java.io.IOException: No externalizer available with id ImageMetadataExt3 ERROR Gaussian Convolution 0:37 Execute failed: java.lang.RuntimeException: java.io.IOException: No externalizer available with id ImageMetadataExt3 What is missed on my installation?

I see it’s the one I posted here: [image] Detecting Background Color KNIME Extensions Hi @caceter , I am sorry for the delayed reply, but I was finally able to take a look at these images. I created a simple workflow that applies the mask to the image and then extracts the median pixel value of the background in each channel. background-color.knwf (474.7 KB) best, Gabriel I have attached an fixed version: background-color-improved.knwf (38.5 KB) best, Gabriel [image] izaychik63: Do you mean I can delete existing node and replace them with current KNIME nodes? Yes, or you can just reset the node, should have the same effect.

Example with Gaussian Convolution

KNIME Extensions

gab1one December 14, 2018, 11:49am 4

I see it’s the one I posted here:

I have attached an fixed version:
background-color-improved.knwf (38.5 KB)

best,
Gabriel

Yes, or you can just reset the node, should have the same effect.