Remote sensing image enhancement based on wavelet and nonlinear iteration

Traditional wavelet transformation enhancement can not adjust the brightness of an image effectively, particularly for the remote sensing images whose brightness is uneven or insufficient. A novel image enhancement algorithm based on wavelet and nonlinear iteration is presented. Nonlinear iteration method is adopted to adjust the low-frequency coefficients of wavelet as well as remaining the effectiveness of the traditional wavelet transformation enhancement. Experimental results demonstrate the effectiveness of our algorithm.