Edge Detection of Binary Image Based on Memristors

Image processing is a type of memory-access-intensive application which puts a great pressure on memory access speed and bandwidth. Memristors has the ability of both memory and computing. With this property, we have designed and implemented image logic operations in memristor memory system, which could save a large amount of memory access at relatively low memory space price. Based on this work, we use image logic operations with memristors into edge detection of binary image. The main idea is as follows. First, we use XOR operation of neighboring pixels to determine whether there is an edge and get the vertical edges and horizontal edges, respectively. Then, we combine the edges in two directions to obtain the whole edge image of the original image. The experimental results show that, our design is right in function, and could reduce memory access considerably.