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Texture analysis of tissue samples using DTOCS and approximated path DTOCS

The aim of this paper is to apply distance transform on curved space (DTOCS) to grayscale images of human tissue samples. Also a new approximated path DTOCS (APDTOCS), which approximates distances on curved space using only the end points of the paths, is proposed. APDTOCS reveals more detail than standard DTOCS especially in parts of the image where the texture is complex and has a lot of small details. APDTOCS is faster and simpler to implement than DTOCS. Texture analysis of tissue sample, which reveals regions of interest, is needed because histopathologic recognition is currently really slow when the whole tissue sample is examined.