I am very new on Knime platform. I started using this tool as I wanted to analyse spot intensity in my images (Just a quick precision: I am a biologist working on protein aggregates in different cell types and i would like to quantify these aggregates). I found this very cool workflow: https://hub.knime.com/knime/spaces/Examples/latest/99_Community/01_Image_Processing/01_Tutorials/02_Application_Tutorials/12_Spot_Detection/01_Spot_Detection
I have implemented it, and changed some parameters to match my needs however now I always end up with the same error message : ERROR Convolution Kernel Creator 0:25:9 Execute failed: (“ArrayIndexOutOfBoundsException”): 0
Could someone please help me?
Also do i have to add a node at the end for exporting the data into CSV file ?
Thanks a lot for your help,
welcome in the KNIME community and our forum
Is the example workflow working on your computer? or did the error came first after you made some changes?
Thank you for your answer. So i just tried again with the unmodified workflow and it is indeed working without having the error as I mentionned previously. However i have no idea what are the outcomes of the measurements that were done on my images. how can i have access to the analysis done on the images and to the final data?
Thank you in Advance,
could you please share the manipulated workflow then? I would test it with the data that is provided in the original example and see if I can reproduce the error on my computer.
Yes sure. I have uploaded the workflow herein.
01_Spot_Detection modif .knwf (676.8 KB)
thanks for sharing. I also checked the original workflow and I am getting the error message already there.
The workaround would be to change the following two values of the Laplacian of Gaussian as they are currently = 0.
You could set Sigma to 1 and Number of Dimensions to 2 for example.
We will investigate why the other numbers result in an error.
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