Saturation improvement in hue-preserving color image enhancement without gamut problem

• Yu, Hengjun

  Department of Communication Design Science, Kyushu University

• Inoue, Kohei

  Department of Communication Design Science, Kyushu University

• Hara, Kenji

  Department of Communication Design Science, Kyushu University

• Urahama, Kiichi

  Department of Communication Design Science, Kyushu University

Abstract

This study proposes a method to improve the saturation of colors during hue-preserving color image enhancement without the gamut problem. First, the color of each pixel in an input image is projected onto one of three bisecting planes or bisectors of an RGB color cube to increase saturation. Then, that projected color is transformed into a target color with a designated luminance and the same hue as the original color. Experimental results show that the proposed method can enhance color images better than can recent hue-preserving color image enhancement methods.

Journal

• ICT Express

  ICT Express 4 (3), 134-137, 2018-09

  Elsevier

Keywords

• Color image enhancement
• Gamut mapping
• Hue
• Saturation

Details

• CRID: 1050298532704957184
• NII Article ID: 120006543261
• DOI: 10.1016/j.icte.2017.07.003
• ISSN: 24059595
• HANDLE: 2324/1961355
• Web Site: https://api.elsevier.com/content/article/PII:S2405959517300565?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S2405959517300565?httpAccept=text/plain
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN