  Images can be represented by mathematical function using wavelets. Wavelet
can be manipulated (shrink/expand) by applying some values to its function. It
helps to localize the signals. Application of wavelet in images processing has
larger scope as proved. Image compression is one of the dimension. There are
various wavelet image compression techniques. This research paper focused on
comparison of only two techniques i.e. STW and SPIHT for color JPEG images.
