A reconfigurable computation device for image processing, the device including a neighborhood-based computation matrix, generating pairing sub-scores between pairs of pixels resulting from a first series of operations configurable via a configuration register; a flexible reduction tree, carrying out a second series of operations configurable via the configuration register, on neighborhoods of pixels configurable via the configuration register; and an analysis matrix, carrying out computations configurable via the configuration register on the results arising from the flexible reduction tree.