Using Knime to develop algorithms for retinal pathology

Hi Knime community members,

I was wondering if anyone could help me with getting some traction in Knime for a fundus photo train/test project in exudative retinal diseases. I have tried loading nodes of fundus photos, trying to define their pathologic findings by Canny or Sobel algorithms or model photos and interrogating for statistical correlation in Knime. However, when I try to move from one phase to another I am not able to get the workflow or even any kind of pattern through Knime. I seem to get blocked.

I would be most appreciative of any assistance stepwise or in the large picture how to gain continuity and traction in this project.

Thanks for your interest,

Joseph Eichenbaum