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Handling WSI Without MPP Metadata #22

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@liuzk233

During my actual slide processing, I encountered some whole-slide images that are missing MPP (microns per pixel) metadata. However, from my observation, it seems your project successfully utilizes such slides despite this missing information.

I was wondering—how did you handle these cases?

Below are the slides I identified in TCGA-BRCA that lack MPP metadata, along with the corresponding error messages I received.

Thank you very much for any guidance you could provide!

Error messages:RuntimeError: Failed to initialize WSI with OpenSlide: Unable to extract MPP from slide metadata: '/home/public/NAS/public/0_dataset/0_TCGA_BRCA/MPP_missing/TCGA-OL-A5RU-01Z-00-DX1.A48CAF2D-9310-4611-B27D-400F3A324607.svs'.

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