In this paper, Landsat5 remote sensing images
are compressed using Discrete Wavelet Transform
(DWT) and the performance is analysed using the
parameters such as CR, PSNR, DNmin, and
DNmax. The RS images are compressed at various
decomposition and threshold levels. Based on the
high PSNR, CR, DNmin and DNmax of the
compressed images, a set of wavelets are chosen.
The spectral signature graph is drawn using the
Digital Number (DN) values.