Effective Image Processing Procedure for Skin Lesion Recognition in Contactless Skin Diagnosis Devices Topics: Biomedical Applications; Biometrics and Pattern Recognition; Image and Video Processing, Compression and Segmentation; Semantic Analysis of Multimedia Data In Proceedings of the 16th International Joint Conference on e-Business and Telecommunications - Volume 1: SIGMAP, 337-342, 2019 , Prague, Czech Republic