Empty spaces between tiling operation using SLIC Superpixels

Hi,

I use SLIC Superpixels to segment tissue and get empty spaces between the tiles of stepwise image processing:
grafik

It runs on a mrxs of a mirax scanner.

I never had this issue before except on large tif images.
Does someone have an idea why this happens?

Yes, there’s an open bug report at https://github.com/qupath/qupath/issues/345
The issue affects both DoG and SLIC superpixels.

thank you Pete.
I could solve the issue by expanding the annotations by 1.5 Micons, that closes the small gaps and is irrelevant for the segmentation quality.

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