A novel FPGA based reconfigurable architecture for image color space conversion

Abstract

In this paper, a novel Field Programmable Gate Array (FPGA) based reconfigurable architecture for image color space conversion is presented. The color space conversion plays an important role in preprocessing stage of digital image processing. Although it is possible to process an image in RGB color space the resulting image may not be processed optimally. The hardware implementation of algorithms like image enhancement, image compression, and communication techniques use color spaces such as Hue-Saturation-Value (HSV), Luminance-Chrominance blue-Chrominance red (YCbCr) and YUV etc. Therefore, it is desired to have an efficient and high speed architectures for color space conversion. The proposed scheme implements two novel architectures for color space conversion suitable for FPGA's and Application Specific Integrated Circuits (ASICs). The architectures developed exploits high degrees of pipelining and parallel processing in order to achieve real time performance. The hardware realization of color space conversion is based on Register Transfer Level (RTL) compliant Verilog code and is implemented using Xilinx XC2V2000-6bf957 FPGA device. The experimental results show that proposed approaches exhibit better performances when compared with the other existing implementations. © 2012 Springer-Verlag.