MULTISPECTRAL IMAGE COMPRESSION USING DISCRETE COSINE TRANSFORM

Abstract

Compression plays a key role in reducing transmission and storage requirements.Compression of Multispectral data is important as it demands lots of memory space for storage.In the present work, the paper proposes transform coding techniques such as different Discrete Wavelet Transform (DWT) for compressing the multispectral data.The transform coding techniques are applied for multispectral input data and are compared with respect to Compression Ratio (CR) and Peak Signal to Noise Ratio (PSNR).The technique proposed is implemented individually on various bands of multispectral image.