Binary wavelet transform-based method for finding flippable pixels in binary images
Oh‐Jin Kwon, Won-Gyu Kim · Optical Engineering · 2008
We propose a new method for finding flippable pixels in binary images. Instead of finding them in the traditional spatial domain, we find them in the binary wavelet transform (BWT) domain. It is shown that flippable pixels can be found more easily and efficiently by investigating high frequency components of BWT coefficients.