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Source files are accessible in this directory.

Input is lena.png:


When we create an "inter-pixel" image, its size doubles so it can contain all the metadata associated (values on edges for example). In this demo, edge values are green and gaps between edges are blue.

Olena-edge color.png

We can stretch each pixel value to a 3*3 square for better visualization.

Olena-edge stretch.png

This is the mask of edge values. Bright values show a high contrast between pixels.

Olena-edge dist.png

Finally, we can run a watershed segmentation on the mask of edge value to segment our input image.

Olena-edge watershed.png