Presentation 2018-06-07
A Proposal of Contrast Enhancement Method by Using Smoothed Histogram on Equi-Hue Plane in RGB Color Space
Yoshiaki Ueda, Hideaki Misawa, Shota Furukawa, Takanori Koga, Noriaki Suetake, Eiji Uchino,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this report, we propose a hue-preserving contrast enhancement method without gamut problem for color images. In the proposed method, each pixel in the original image can be expressed as a weighted average of three colors, i.e., white, black, and its pure color. The histogram specification is performed by using smoothed histogram of weight for contrast enhancement. Then, the hue of the pixel is preserved because each pixel is transformed on the equi-hue plane. To verify the effectiveness of the proposed method, some low contrast images are used to compare with conventional methods.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) contrast enhancement / smoothed histogram / pure color
Paper # SIS2018-3
Date of Issue 2018-05-31 (SIS)

Conference Information
Committee SIS / IPSJ-AVM / ITE-3DIT
Conference Date 2018/6/7(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Jozankei View Hotel
Topics (in Japanese) (See Japanese page)
Topics (in English) Intelligent Multimedia Systems, Applied Enbedded Systems, Three-Dimensional Image Technology (3DIT), etc.
Chair Takayuki Nakachi(NTT) / Hideaki Kimata(NTT) / Tsutomu Horikoshi(Shonan Institute of Technology)
Vice Chair Noriaki Suetake(Yamaguchi Univ.) / Tomoaki Kimura(Kanagawa Inst. of Tech.)
Secretary Noriaki Suetake(Kyushu Inst. of Tech.) / Tomoaki Kimura(Tokyo Metropolitan Univ.) / (NTT) / (Tokyo Univ. of Science)
Assistant Takanori Koga(National Inst. of Tech. Tokuyama College) / Hideaki Misawa(National Inst. of Tech., Ube College)

Paper Information
Registration To Technical Committee on Smart Info-Media Systems / Special Interest Group on Audio Visual and Multimedia Information Processing / Technical Group on Three-Dimensional Image Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Proposal of Contrast Enhancement Method by Using Smoothed Histogram on Equi-Hue Plane in RGB Color Space
Sub Title (in English)
Keyword(1) contrast enhancement
Keyword(2) smoothed histogram
Keyword(3) pure color
1st Author's Name Yoshiaki Ueda
1st Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
2nd Author's Name Hideaki Misawa
2nd Author's Affiliation National Institute of Technology, Ube College(NIT, Ube College)
3rd Author's Name Shota Furukawa
3rd Author's Affiliation National Institute of Technology, Kagoshima College(NIT, Kagoshima College)
4th Author's Name Takanori Koga
4th Author's Affiliation National Institute of Technology, Tokuyama College(NIT, Tokuyama College)
5th Author's Name Noriaki Suetake
5th Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
6th Author's Name Eiji Uchino
6th Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
Date 2018-06-07
Paper # SIS2018-3
Volume (vol) vol.118
Number (no) SIS-73
Page pp.pp.29-33(SIS),
#Pages 5
Date of Issue 2018-05-31 (SIS)