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- A grayscale image showing the CIELAB lightness component of the photograph appears to be a faithful rendering of the scene: it looks roughly like a black-and-white photograph taken on panchromatic film would look, with clear detail in the flame, which is much brighter than the man's outfit or the background. (en)
- A grayscale image showing the HSL lightness component of the photograph renders the flame, as approximately middle gray, and ruins the dramatic effect of the original by radically reducing its contrast. (en)
- A grayscale image showing the component average of the photograph is much a less convincing facsimile of the color photograph, with reduced contrast, especially with its flame darker than in the original. (en)
- A grayscale image showing the HSV value component of the photograph leaves the flame completely white , and the man's clothing much too bright. (en)
- A grayscale image showing the luma appears roughly similar to the CIELAB lightness image, but is a bit brighter in areas which were originally very colorful. (en)
- A full-color image shows a high-contrast and quite dramatic scene of a fire breather with a large orange-yellow flame extending from his lips. He wears dark but colorful orange-red clothing. (en)
- The video shows a continuous transformation from an RGB cube set at its black vertex to a HSL cylinder through a step of HSL double cone (en)
- The same image, with a portion removed for clarity. (en)
- The video shows a continuous transformation from an RGB cube set at its black vertex to a HSV cylinder through a step of HSV cone (en)
- The RGB cube has black at its origin, and the three dimensions R, G, and B pointed in orthogonal directions away from black. The corner in each of those directions is the respective primary color , while the corners further away from black are combinations of two primaries . At the cube's corner farthest from the origin lies white. Any point in the cube describes a particular color within the gamut of RGB. (en)
- In classic patent application style, this is a black-and-white diagram with the patent name, inventor name, and patent number listed at the top, shaded by crosshatching. This diagram shows a three-dimensional view of Tektronix's biconic HSL geometry, made up of horizontal circular slices along a vertical axis expanded for ease of viewing. Within each circular slice, saturation goes from zero at the center to one at the margins, while hue is an angular dimension, beginning at blue with hue zero, through red with hue 120 degrees and green with hue 240 degrees, and back to blue. (en)
- Several paint mixing terms can be arranged into a triangular arrangement: the left edge of the triangle shows white at its top and black at its bottom with gray between the two, each in its respective oval. A pure color lies at the right corner of the triangle. On the edge between the pure color and black is a shade , between the pure color and white is a tint , and a tone lies in the middle of the triangle . (en)
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- . (en)
- 1123200.0 (dbd:second)
- 1814400.0 (dbd:second)
- Fig 20b. The Adobe RGB gamut mapped in CIELAB space. Also notice that these two RGB spaces have different gamuts, and thus will have different HSL and HSV representations. (en)
- Fig. 13a. Color photograph . (en)
- Fig. 13b. CIELAB L* . (en)
- Fig. 13c. Rec. 601 luma (en)
- Fig. 13e. HSV value V. (en)
- Fig. 13f. HSL lightness L. (en)
- Fig. 21a. Color photograph. (en)
- Fig. 21b. HSL/HSV hue of each color shifted by (en)
- Fig. 2a. HSL cylinder. (en)
- Fig. 2b. HSV cylinder. (en)
- Fig. 6a. The RGB gamut can be arranged in a cube. (en)
- Y' (en)
- Fig. 7. Tektronix graphics terminals used the earliest commercial implementation of HSL, in 1979. This diagram, from a patent filed in 1983, shows the bicone geometry underlying the model. (en)
- Fig. 5. This 1916 color model by German chemist Wilhelm Ostwald exemplifies the "mixtures with white and black" approach, organizing 24 "pure" colors into a hue circle, and colors of each hue into a triangle. The model thus takes the shape of a bicone. (en)
- Fig 20a. The sRGB gamut mapped in CIELAB space. Notice that the lines pointing to the red, green, and blue primaries are not evenly spaced by hue angle, and are of unequal length. The primaries also have different L* values. (en)
- Fig. 6b. The same image, with a portion removed for clarity. (en)
- Fig. 4. Painters long mixed colors by combining relatively bright pigments with black and white. Mixtures with white are called tints, mixtures with black are called shades, and mixtures with both are called tones. See Tints and shades. (en)
- −30° (en)
- Fig. 21c. Hue shifted but CIELAB lightness kept as in the original. (en)
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