An efficient and fast compression technique for multispectral browse images

Abstract

A study has been carried out to select a suitable and an efficient compression technique for IRS-LISS browse images. As browsing is mainly for visual inspection of imageries for checking area coverage of interest and cloud cover, more emphasis has been given on visual quality of image. So transformations like RGB-YUV and YUV-RGB coupled with compression have also been considered. Various compression techniques like JPEG, Wavelet based Set Partitioning In Hierarchical Trees (SPIHT) technique on Independent bands, KLT-SPIHT, RGB-YUV-SPIHT have been considered. The experiment has been done on a urban area image as well as on a hilly area image. Various results are tabulated and plotted.