Unified Cordic Based Processor for Image Processing

The CORDIC algorithm, owing to its hardware efficiency, has been widely employed for computing complex mathematical operations. In this paper, a unified CORDIC-based processor for image processing is presented. For this, a wide range of popular algorithms like image enhancement in the spatial domain, frequency transforms, image rotation, edge detection etc. are chosen and their implementation using CORDIC is investigated. An integrated architecture that exploits the different operating modes of CORDIC is proposed employing an array of CORDIC-based processing elements. A qualitative analysis of the processor in terms of computation cycles and area complexity to process an entire image of size M × N is also presented.