画像解析による水玉模様の同時対比効果の新しい評価法
書誌事項
- タイトル別名
-
- A New Method for the Evaluation of the Simultaneous Contrast Effect of Polka-Dotted Patterns Using Image Analysis
- ガゾウ カイセキ ニ ヨル ミズタマ モヨウ ノ ドウジ タイヒ コウカ ノ アタラシイ ヒョウカホウ
この論文をさがす
抄録
Image analysis is applied to the characterization of color contrast of polka-dotted patterns. The color system developed in this research permit image features to be identified not only by lightness but also by other color attributes. Colors in an image are expressed in the NTSC_RGB color system. Therefore, three primary colors, red, green and blue (RGB), can be obtained for each pixel directly from the image. However, the RGB color system does not directly correspond to a person's visual perceptions. On the other hand, a color coordinate system based on hue (H*), chroma (C*) and lightness (L*) is more consisted with visual perceptions. Consequently, RGB images are converted to L*C*H* images. Each pixel of the images is assigned a gray-level value from 0 for black to 255 for white. The co-occurrence contrast (CON) is calculated for L*, C* and H* images. CON for achromatic images with a lightness contrast effect increases with the increase of the difference of lightness between the polka-dotted pattern (the test field) and the background (the inducing field), regardless of whether the lightness of the figure becomes higher or lower than that of the background. The simultaneous contrast effect combined with lightness, saturation and hue contrast is also discussed in terms of CON.
収録刊行物
-
- 日本家政学会誌
-
日本家政学会誌 57 (2), 125-132, 2006
一般社団法人 日本家政学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001206334274816
-
- NII論文ID
- 110004656826
-
- NII書誌ID
- AN10040097
-
- ISSN
- 18820352
- 09135227
-
- NDL書誌ID
- 7833243
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- NDL-Digital
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可