Multi-stream CNN for Face Anti-spoofing Using Color Space Analysis

2021 ◽  
pp. 200-211
Author(s):  
Purva Mhasakar ◽  
Srimanta Mandal ◽  
Suman K. Mitra
Keyword(s):  
Color Space ◽  
Space Analysis

Metamerism of Tanzanite Under Altered Illuminators

2013 ◽  
Vol 591 ◽  
pp. 305-308
Author(s):  
Ma Ye ◽  
Ying Guo
Keyword(s):  
Color Space ◽  
Color Difference ◽  
Color Appearance ◽  
Visual Effect ◽  
Space Analysis ◽  
Commercial Grade ◽  
Angle Change ◽  
Violet Color ◽  
Hue Angle ◽  
Difference Form

The color parameters of 19 pieces purity transparent and color uniform commercial grade tanzanites were measured by colorimeter Color i5 and this article introduces the concept of Metamerism and calculates the color quantitatively, based on CIE1976 L*a*b* uniform color space, analysis the contribution of different illuminators to the bluish-violet color of tanzanite. The change of hue-angle h0 is in contrast to the actual visual effect, this is called abnormal hue-angle change of the gemstone tanzanite; both of the contributions of lightness difference and chroma difference play the same role to the change of the color difference, form the bluish-violet of tanzanite; it is shown that Metamerism indexes (Mt) of different samples are different and the same sample’s main wavelength follows the change while illuminators altered. Therefore, while illuminators altered, the color of tanzanite samples change from blue to bluish-violet, and the Mt larger, the change of color is greater, namely, the violet hue is more clear, with the better color appearance.

Comparative color space analysis of difference images from adjacent visible human slices for lossless compression

1997 ◽  
Author(s):  
George R. Thoma ◽  
Ryan Pipkin ◽  
Sunanda Mitra
Keyword(s):  
Color Space ◽  
Lossless Compression ◽  
Space Analysis ◽  
Difference Images ◽  
Visible Human

scholarly journals Color space analysis of mutual illumination

1993 ◽  
Vol 15 (12) ◽  
pp. 1319-1326 ◽  
Author(s):  
B.V. Funt ◽  
M.S. Drew
Keyword(s):  
Color Space ◽  
Space Analysis

Temporal-color space analysis of reflection

1994 ◽  
Vol 11 (11) ◽  
pp. 2990 ◽  
Author(s):  
Yoichi Sato ◽  
Katsushi Ikeuchi
Keyword(s):  
Color Space ◽  
Space Analysis

Color Space Analysis Using KNN for Lettuce Crop Stages Identification in Smart Farm Setup

2018 ◽  
Author(s):  
Pocholo James M. Loresco ◽  
Ira C. Valenzuela ◽  
Elmer P. Dadios
Keyword(s):  
Color Space ◽  
Space Analysis
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