  In this paper, a comparative study between proposed hyper kurtosis based
modified duo-histogram equalization (HKMDHE) algorithm and contrast limited
adaptive histogram enhancement (CLAHE) has been presented for the
implementation of contrast enhancement and brightness preservation of low
contrast human brain CT scan images. In HKMDHE algorithm, contrast enhancement
is done on the hyper-kurtosis based application. The results are very promising
of proposed HKMDHE technique with improved PSNR values and lesser AMMBE values
than CLAHE technique.

Computer Vision and Pattern Recognition