Digital image processing is rapidly evolving field with growing application in science and engineering. Edge enhancement plays a vital role in Digital image processing.Here proposed a novel technique for automatic edge enhancement in indoor digital images.A robust and unsupervised edge enhancement algorithm based on a combination of wavelet coefficients at different scales is applied. An example of the operation on simulated images can be first considered. The images are denoised and performed filtering using sobel filter. The result obtained after edge enhancement using wavelet transform is...