Title :
Color-tone similarity on digital images
Author :
Kikuchi, Hiroaki ; Huttunen, Heikki ; Junghyeun Hwang ; Yukawa, Masahiro ; Muramatsu, Shigeki ; Jaeho Shin
Author_Institution :
Niigata Univ., Niigata, Japan
Abstract :
A color-tone similarity index (CSIM) between two color images is presented and another index, picture similarity index (PSIM), is also given for a comprehensive similarity comparison between color images. CSIM is defined by a statistical analysis of cumulative histograms in a hue-oriented color space. It characterizes the color distributions, while the existing structural similarity index reflects the spatial structure involved with grayscale images. The behaviors of CSIM are checked by the comparisons of color code chips. Experimental results are given. The proposed indexes combined with SSIM are hopeful to provide a tool for color image quality analysis (IQA).
Keywords :
higher order statistics; image colour analysis; statistical analysis; CSIM; IQA; SSIM; color distribution; color image analysis; color tone similarity index; cumulative histogram; grayscale image; hue oriented color space; image quality analysis; picture similarity index; spatial structure; statistical analysis; structural similarity index; Brightness; Color; Educational institutions; Histograms; Image color analysis; Indexes; Vectors;
Conference_Titel :
Signal & Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012 Asia-Pacific
Conference_Location :
Hollywood, CA
Print_ISBN :
978-1-4673-4863-8
