Image analysis-based classification of pigmentation patterns in fish: A case study of pseudo-albinism in Senegalese sole

This contribution presents new tools for extraction and classification of skin colour and textural features in fish using a Gray Level Co-Occurrence matrix (GLCM) method followed by data dimension reduction procedures. These procedures are of special interest in flatfish hatcheries where pigmentary disorders are common; the use of the image analysis procedures may allow the proper identification of malpigmented fish and the assessment of their quality in terms of pigmentation patterns.