Block-Extraction and Haar Transform Based Linear Singularity Representation for Image Enhancement

Figure 9

Comparison of image enhancement results by the proposed method, NSCT, and alpha-rooting. (a) Input image, (b) the enhanced image by the proposed method, (c) the enhanced image by NSCT, and (d) the enhanced image by alpha-rooting.

(a)

(b)

(c)

(d)