Cone cells or cones are photoreceptor cells in the retina of the vertebrate eye. Cones are active in daylight conditions and enable Photopic vision, as opposed to rod cells, which are active in dim light and enable Scotopic vision.

LMS (long, medium, short), is a color space which represents the response of the three types of cones of the human eye, named for their responsivity (sensitivity) peaks at long, medium, and short wavelengths. The numerical range is generally not specified, except that the lower end is generally bounded by zero.

Conventional trichromatic color vision models 1 postulate that long- (L), middle- (M), and short-wavelength (S) cone signals reorganize into two color-opponent channels where L+S (red) and M (green) cone signals cancel each other, and L+M (yellow) …

一般来说，S-视锥细胞对波长420nm的光线最为敏感，M-视锥细胞530nm的波长最为敏感，而L-视锥细胞对于560nm的波长最为敏感。 假设我们创造一个简化版的视网膜模型，其中有三个视锥细胞，SML各一个。 如果这个时候给这个视网膜照射蓝光（大约波长为420nm） 就像我们前面所讨论的一样，同种类的视锥细胞对于波长的反应不一样， S视锥细胞对这个波长有最大的反应，向下游传递了更“大”的电信号，而M, L视锥细胞对这个波长反应一般，向下游传递了相对较“小”的电 …

Many workers have proposed the transformation or coding of long, medium, short (LMS) cone responses to r − g, y − b opponent color chromatic responses (unique hues) on the following basis: That L, M, S cones represent Red, Green, and Blue hues, with Yellow represented by (L + M), while r − g and y − b represent the opponent pairs of unique hues.

In all cases (SML cones, RGB functions, XYZ tristimuli, and unique hue chromatic responses), each function curve is invariant in hue. Hence another aspect of agreement between unique hue chromatic responses and cone responses is that both …

2016年4月22日 · The extremely high correlation between SML cones and the spectral chromatic responses bgy, combined with deterministic causation of the latter by the former as detailed in Ref. 18, implies that SML cone outputs lead directly to the postreceptoral bgy chromatic responses (and therefore the spectral unique hues blue, green, yellow).

I describe complementary colors' physiology and functional roles in color vision, in a three-stage theory (receptor, opponent color, and complementary color stages). 40 specific roles include the...

2011年12月1日 · I describe complementary colors' physiology and functional roles in color vision, in a three-stage theory (receptor, opponent color, and complementary color stages). 40 specific roles include the...

The extremely high correlation coefficients indicate each SML cone outputs directly to one spectral (b, g, or y) chromatic response, with S and L having a further function in directing...