Contrast Enhancement Technique Using Sub-band Decomposition for OLED Display

Abstract: Sub-band decomposition along with multiscale retinex is used for contrast enhancement. Initially the image is divided into its components of red green and blue and is processed differently to avoid overlapping of bands. So the image is decomposed and this is done for various bands using multiscale retinex where the log function is used to produce point by point ratio of image.

Keywords: Image enhancement, sub band decomposition, multiscale retinex