Image thresholding using standard deviation. - Jung-Min Sung; Dae-Chul Kim; Bong-Yeol Choi; Yeong-Ho Ha (Image Processing: Machine Vision Applications, 2014)

Illumination estimation based on estimation of dominant chromaticity in nonnegative matrix factorization with sparseness constraint. - Ji-Heon Lee; Ji-Hoon Yoo; Jung-Min Sung; Yeong-Ho Ha (Color Imaging: Displaying, Processing, Hardcopy, and Applications, 2015)