Silva, Giuliana MartinsLazzaretti, André E.Monteiro, Fernando C.2024-10-082024-10-082024Silva, Giuliana M.; Lazzaretti, André E.; Monteiro, Fernando C. (2024). An Evaluation of Image Preprocessing in Skin Lesions Detection. In 3rd International Conference on Optimization, Learning Algorithms and Applications (OL2A 2023). Cham: Springer Nature, Vol. 2, p. 35–49. ISBN 978-3-031-53035-7978-3-031-53035-7978-3-031-53036-4http://hdl.handle.net/10198/30386This study aims to evaluate the impact of image preprocessing techniques on the performance of Convolutional Neural Networks (CNNs) in the task of skin lesion classification. The study is made on the ISIC 2017 dataset, a widely used resource in skin cancer diagnosis research. Thirteen popular CNN models were trained using transfer learning. An ensemble strategy was also employed to generate a final diagnosis based on the classifications of different models. The results indicate that image preprocessing can significantly enhance the performance of CNN models in skin lesion classification tasks. Our best model obtained a balanced accuracy of 0.7879.engSkin Lesion ClassificationConvolutional Neural NetworksDeep LearningImage Preprocessingconference paper10.1007/978-3-031-53036-4_3