Source: https://www.researchgate.net/profile/Arnaud-Renouf/publication/228541907_Un_modele_de_formulation_d'applications_de_traitement_d'images_A_formulation_model_for_image_processing_applications/links/09e41508e5641eb2a6000000/Un-modele-de-formulation-dapplications-de-traitement-dimages-A-formulation-model-for-image-processing-applications.pdf