The Prague Texture Segmentation Datagenerator and Benchmark (PTSDB) is the on-line service allowing comparison with state-of-the-art supervised or unsuperviseg image or video segmenters on machine-generated large suite of benchmark tests.Computer-generated texture mosaics and benchmarks are composed from the following test image types: monospectral, multispectral, BTF (bidirectional texture function), hyperspectral satellite images, rotation invariant texture set, scale invariant texture set, illumination invariant texture set, and dynamic textures. Submitted results are stored and used to update the ranking of algorithms based on the 29 most frequented segmentation criteria. The benchmark further on generates sensitivity graphs of segmentation accuracy measures, LaTeX coded result tables, and some other functionality.