Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Color saturation

In colored cathode ray tubes (CRTs), such as those used in televisions and computer terminals, three electron gun beams are focused on three different sets of phosphor dots on the front face of the tube. The dots are produced by using a compHcated photoHthography process. The phosphor dots are produced by settling the three different phosphors, each of which emits one of the primary saturated colors, red, green, or blue. Each phosphor is deposited separately and the three dots in each set are closely spaced so that the three primary colors are not resolved at normal viewing distances. Instead the viewer has the impression that there is only one color, the color achieved when the three primary colors are added together. [Pg.292]

Saturation is the clarity of a color. It can also be understood as the intensity of hue in comparison to brightness. A saturated color looks clear and bright an unsaturated color appears pale, muddy, or dull. [Pg.17]

Saturable dye absorber, 14 677 Saturated aqueous salt solution, 9 34 Saturated calomel electrode (SCE), 9 571 Saturated fatty acids, 10 829, 830 Saturated hydrocarbons adsorbent affinity, 1 674 adsorption by zeolites, 1 624 fluorine reactivity with, 11 831 isomerization of, 12 172—173 Saturated polyester resins, based on trimethylpentanediol, 12 673 Saturated polyesters, 10 7 Saturated synthetic rubber, 10 705 Saturation and coating processes, 10 12-13 Saturation bonding, 17 509-510 Saturation color, 19 262 Saturation concentration, 15 677 Saturation index... [Pg.820]

The basic ultramarine color is a rich, bright reddish blue, the red-green tone varying with chemical composition. The violet and pink derivatives have weaker, less saturated colors (see Figs. 33-35, for reflectance spectra). [Pg.125]

Note that care must be taken not to perform the transformation for HSI values that would specify RGB values outside of the unit cube. Suppose we start with a red color [R, G, B] = [1, 0, 0]. If we transform this color to HSI space, we obtain [H, S, /] = [0, 1, ]. This is a maximally saturated color of intensity I = It is not possible to further increase the intensity to 1 while maintaining the same saturation. [Pg.95]

Saturation (intensity or chroma) The difference between a color and the gray with the same tone exemplifies saturation. A pure or saturated color can be diminished in saturation by adding white light and normalizing the result to the same perceptual tone. [Pg.56]

Once all imaging parameters are set, data can be acquired and captured. It is important to note that the data may depend on the actual settings (force, scan velocity, feedback loop quality, etc.) therefore, one should note these parameters independently. The data displayed on the screen is typically planefitted to be readable (in case the sample plane does not coincide with the horizontal x, y = 0, 0 plane of the scanner, the image would appear tilted and flat surfaces would appear in saturated colors compare also Sect. 2.2.7). A line-by-line planefit is most often utilized. Here, the data of each captured scan line is normalized by subtracting a first order polynomial fit from the particular line. The captured data, however, should be captured without planefit in order to facilitate meaningful analysis at a later stage (Sect. 2.2.7). [Pg.37]

Friedman et al., 2004). Clusters of pixels with saturated color would be evident only if one vector magnitude... [Pg.8]

Hsu S F, Lee C C, Hu A T and Chen C H, "Fabrication of blue toi>emitting or anic light-emitting devices with highly saturated color". Current Applied Physics, 4, 6, November 2004, 663-666. [Pg.217]

Objective VI Nitrogen Pour point Saturates color... [Pg.201]

Forster resonance energy transfer (FRET) from CP to QCNs. The EL is narrow and is similar to PL. Ihe narrower EL of QCNs compared to CPs or organic molecules reflects the saturated color. [Pg.203]

Color poses complexities similar to fighting and illumination. Not everyone sees and remembers colors exactly the same. Color characteristics include hue, saturation, and other characteristics. Hue is what is the color is, such as red, green, blue, and yellow. There are actually millions of hues, which makes color complex. Saturation is the purity of a color. High saturation colors look rich and full. Low saturation colors look dull and grayish. [Pg.293]

In 1945 Bouma summarized limitations of the various U.C.S. systems as follows that in the neighborhood of the white point, and also for unsaturated colors, they give a fairly correct measure of the number of steps of just noticeable color differences that for the spectral locus and for very saturated colors, agreement is much worse finally, so far as thresholds for colorimetric purity are concerned, the U.C.S. system is useless (Bouma, 1947 p. 241). So far as we know, these views have not been contradicted. This is not to say, as Bouma points out, that the U.C.S. system is not serviceable, and furthermore it is wholly proper that emphasis should be given to the usefulness of the quantity AE to set color tolerances in various industries. [Pg.333]

Figure 35 shows the electrophosphorescence spectra of complex 53 for 3% and 12% doped in CBP. A sUght red shift for increasing doping concentration is seen, but the emission spectra were independent of current densities up to 150 mA cm. The same emission peak is found from a solution phosphorescence spectra of complex 53. The emission peaks of ot-NPD and the host, which are located in the blue at aroimd 440-450 nm and aroimd 480 nm, or intermediate exciplexes are not present. Another characteristic of phosphorescent dyes is the considerable reduction of the linewidth of the emission spectra compared to standard luminescence materials like Alqs. In the case of complex 53, the line width is only 52 mn (compared to an undoped Alqs emission where the line width is 83 run), which leads to the saturated color that is necessary for high-performance color displays, assuming that the emission maximum is well located around one of the primary colors green, blue, or red. [Pg.169]


See other pages where Color saturation is mentioned: [Pg.284]    [Pg.493]    [Pg.15]    [Pg.550]    [Pg.15]    [Pg.30]    [Pg.362]    [Pg.94]    [Pg.205]    [Pg.169]    [Pg.562]    [Pg.124]    [Pg.106]    [Pg.97]    [Pg.330]    [Pg.141]    [Pg.350]    [Pg.897]    [Pg.279]    [Pg.287]    [Pg.496]    [Pg.160]    [Pg.47]    [Pg.57]    [Pg.779]    [Pg.85]    [Pg.308]    [Pg.1731]    [Pg.46]    [Pg.56]    [Pg.261]    [Pg.319]    [Pg.429]   
See also in sourсe #XX -- [ Pg.234 ]




SEARCH



Color saturated

© 2024 chempedia.info