Introduction Of MUNSELL (Meng Saier) Color System

The color stereoscopic model of < p > a href= "http://www.91se91.com" > Munsell < /a "is like a double cone, and its central axis represents no color, that is, the lightness grade of neutral color.

The black pition from the bottom to the top is divided into 11 gray scales, which are called the Munsell lightness.

The horizontal distance between a specific color and the central axis represents saturation.

It is called Munsell chroma, which indicates that the color with the same lightness is neutral.

The chroma of neutral color on the central axis is 0, the farther away from the central axis, the greater the chroma value.

The angle projected from the central horizontal axis represents the tone.

Fig. 2. The horizontal section of Munsell color stereoscopic model is a horizontal section of Munsell color stereoscopic model. Its central angle represents 10 tones.

It includes 5 main colors: red (R), yellow (Y), green (G), blue (B), violet (P) and 5 intermediate tones Huang Hong (YR), green yellow (GY), blue green (BG), violet blue (PB), and red purple (RP).

Each tone can be divided into 10 grades, each of which has a 5 main tone and a middle tone.

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< p > any color can be calibrated by the 3 coordinates of the hue, lightness and chroma of the color solid model. The calibration method is to first write the tone H, then write the lightness value V, then write the chroma after the slash, that is: / = hue; lightness value / chroma.

Neutral colors are used to express the lightness value, and not to write the chroma behind the slant line: / = neutral color; lightness value /.

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< p > paper is used to make samples of various colors in Munsell system, compiled in volume, namely Munsell color atlas. Each page includes color samples of a vertical profile in a color solid, that is, different brightness values and different chromaticity samples of the same tone.

In 1915, the United States first published the Munsell color map, and revised the Munsell color atlas in 1929 and 1943 respectively by the National Bureau of standards and the American Optical Society.

In 1943, the Munsell color arrangement sub committee of the American optical society further studied the Munsell color system. It was found that Munsell's color samples were not completely in line with the principle of visual equidistance.

They developed the "Meng Searl new standard system" by spectroscopic photometry and visual experiments on the color samples in Munsell catalogue. The revised color samples are more closely spaced in visual sense, and the chromatic coordinates of the corresponding CIE1931 colorimetric system can be given for each color sample.

At present, the "Munsell color atlas" published in the United States and Japan is the atlas of the new standard system.

In 1974, the new version of the United States included 1450 color samples and 37 neutral colored samples.

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< p > table color method: hue brightness / chroma Hue Value/Chrome (H V/C) < /p >

< p > all a href= "http://www.91se91.com/news/index_c.asp" > Color < /a > are arranged in three dimensions according to the hue, color value and chroma of the MUNSELL color space.

Each color has a specific MUNSELL color symbol, and you can easily find colors based on symbols.

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< p > < img border= "0" alt= "" align= "center" src= "/uploadimages/201304/08/2013040820314102801.jpg" / > /p >

< p > using MUNSELL naming HV/C, we can give a vivid example: red, MUNSELL symbol is 5R 6/14, 5R refers to hue (red), 6 is color value (medium light color), and 14 color means very bright color.

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< p > MUNSELL < a href= "http://www.91se91.com/news/" > color space < /a > /p >

< p > MUNSELL hue, color value and chromaticity are different, so color can be arranged according to these three attributes in three-dimensional space.

Neutral colors are placed along a vertical line called "neutral axis", black at the bottom, white on the top, and all gray in the middle.

Different hue is displayed at different angles around the neutral axis.

The color scale is perpendicular to the neutral axis and increases outwards.

The three-dimensional arrangement of colors is called Munsell color space.

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< p > MUNSELL color stereoscopic < /p >.

< p > MUNSELL all colors in a specific area in the color space are called "MUNSELL color stereoscopic".

The hue will only circle the circle for a week.

The lowest value of the color value is expressed by pure black (the limit of black color), and the highest end is expressed by pure white (white color limit).

For a known value, there is a limit of possible chromaticity, and even in theory there are ideal pigments.

The characteristics may not be as good as the ideal real pigment, which will further restrict the physical expression of the color stereoscopic.

Munsell color sequence system applies to all possible colors.

The highest yellow color has a higher value and the highest color is less than /p.