Performance Analysis of Image Compression Using Discrete Cosine Transform With Various Discrete Wavelet Transforms
Image compression is a widely discovered area of research & application. Many compression techniques have been developed including few mixed methods. The Discrete Cosine Transform (DCT) is one of the widely used compression method. Also the Discrete Wavelet Transform (DWT) provides substantial improvements in picture quality due to its multi resolution nature. Application of both methods together for image compression can provide a sustained Peak Signal to Noise Ratio (PSNR) along with a better overall compression ratio. This paper aims at the analysis of Color Image compression using DCT and DWT for better PSNR & Compression ratio.
Provided by: Journal of Global Research in Computer Science (JGRCS) Topic: Software Date Added: Jan 2012 Format: PDF