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Preparation steps of the conjunctival dataset and the HRF dataset. The conjunctival data preparation step: (a) raw data of the conjunctival image, (b) CLAHE-adopted image, (c) conjunctiva patches, and (d) corresponding ground-truth of (c). The HRF data preparation step: (e) resized HRF image, (f) CLAHE-adopted image, (g) HRF patches, and the (h) corresponding ground-truth of (g).
