edge extraction

Edge_input receives the visual feed from vision_C or simple_vision. It connects to Edge_output through an excitatory block_to_block mapping and an inhibitory inhibit_surrounding mapping. The inhibit_surrounding mapping (Figure 1) suppresses all neurons adjacent to each destination neuron. As this inhibition accumulates, only neurons along the object’s boundary can surpass the firing threshold, while interior neurons are suppressed. Consequently, Edge_output displays the outline of any presented object. This genome is useful for processing image-related features, such as orientation.