IMAGE COMPRESSION USING HYBRID BTC AND DCT TECHNIQUE

Abstract

With the growth of modern communication techniques, demand for image data compression is increasing rapidly. The main goal of image compression techniques is to save a image using as much less bits as possible so that it occupies less space and it transmission is easy. Thus save lots of time while transmitting the image and also storage space. Image compression techniques are divided mainly into two domains: spatial domain and transform domain. Spatial domain techniques have the advantages of hardware complexity whereas transform domain techniques have the advantage of better compression ratio. This thesis is based on combining the two domain techniques to achieve better results. The two techniques used are BTC and DCT. Various test images are used to find the results and compare it with other compression techniques. Also compression efficiency, PSNR, MSE are found for all and compared.”