Color Image Enhancement Focused on Limited Hues

Abstract

Some color images primarily comprise specific hues, for example, food images predominantly contain a warm hue. Therefore, these hues are essential for creating delicious impressions of food images. This paper proposes a color image enhancement method that can select hues to be enhanced arbitrarily. The current chroma is considered such that near achromatic colors are not over-enhanced. The effectiveness of the proposed method was confirmed through experiments using several food images.

Keywords

• image enhancement
• limited hues
• hue preservation
• CIELAB
• sRGB