Simulation of FPGA Implementation of Approximate Image Compression

Abstract

Digital image processing encompasses processes whose inputs and outputs are images and in addition, encompasses processes that extract attributes from images. Large amount of storage capacity is required for digital images and videos. Digital imaging plays an important role in different multimedia applications such as geospatial remote sensing, transcoding, traffic cameras, homeland security etc. So while preserving the critical image information it is necessary to develop a system that produces high degree of compression. DCT (Discrete Cosine Transform) is a widely used mathematical tool in image and video compression. It is a core component in contemporary media standards such as JPEG and MPEG. Indeed, the DCT is known for its properties of decorrelation, energy compaction, separability, symmetry, and orthogonality. The image and video compression algorithm is implemented on FPGA which possesses a very low computational complexity. In this transform image and video compression is done using Virtex-V FPGA then this decompressed image and video is displayed in MATLAB as well as on VGA.