This book constitutes the refereed proceedings of the 5th International Conference on Image and Signal Processing, ICISP 2012, held in Agadir, Morocco, in June 2012. The 75 revised full papers presented were carefully reviewed and selected from 158 submissions. The contributions are grouped into the following topical sections, multi/hyperspectral imaging, image itering and coding, signal processing, biometric, watermarking and texture, segmentation and retieval, image processing, and pattern recognition.