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  2. Indian-head test pattern - Wikipedia

    en.wikipedia.org/wiki/Indian-head_test_pattern

    Indian-head test pattern. The Indian-head test pattern is a test card that gained widespread adoption during the black-and-white television broadcasting era as an aid in the calibration of television equipment. It features a drawing of a Native American wearing a headdress surrounded by numerous graphic elements designed to test different ...

  3. Rorschach test - Wikipedia

    en.wikipedia.org/wiki/Rorschach_test

    Rorschach test. The Rorschach test is a projective psychological test in which subjects' perceptions of inkblots are recorded and then analyzed using psychological interpretation, complex algorithms, or both. Some psychologists use this test to examine a person's personality characteristics and emotional functioning.

  4. Black Intelligence Test of Cultural Homogeneity - Wikipedia

    en.wikipedia.org/wiki/Black_Intelligence_Test_of...

    The results of the test showed that the black group performed much better than the white group. White students performed more poorly on this test than blacks, suggesting that there are important dissimilarities in the cultural backgrounds of blacks and whites. The results of these tests and examination of the BITCH-100 confirmed Robert Williams ...

  5. SMPTE color bars - Wikipedia

    en.wikipedia.org/wiki/SMPTE_color_bars

    SMPTE ECR 1-1978 (SDTV) In a SMPTE color bar image, the top two-thirds of the television picture contain seven vertical bars of 75% intensity. In order from left to right, the colors are white or gray, yellow, cyan, green, magenta, red, and blue. [ 18] The choice of white or gray depends on whether that bar's luminance is 100% or not.

  6. CMYK color model - Wikipedia

    en.wikipedia.org/wiki/CMYK_color_model

    CMYK color model. Color printing typically uses ink of four colors: cyan, magenta, yellow, and black. When subtractive CMY inks are combined at full strength, pairwise combinations are red, green, and blue. Combining all three gives an imperfect black color. What appears as cerulean ( ) in the top image is actually a blend of cyan, magenta ...

  7. Grayscale - Wikipedia

    en.wikipedia.org/wiki/Grayscale

    Web-safe color. v. t. e. In digital photography, computer-generated imagery, and colorimetry, a greyscale (more common in Commonwealth English) or grayscale (more common in American English) image is one in which the value of each pixel is a single sample representing only an amount of light; that is, it carries only intensity information.

  8. Spore print - Wikipedia

    en.wikipedia.org/wiki/Spore_print

    A spore print is made by placing the spore-producing surface flat on a sheet of dark and white paper or on a sheet of clear, stiff plastic, which facilitates moving the spore print to a darker or lighter surface for improved contrast; for example, it is easier to determine whether the spore print is pure white or, rather, very slightly pigmented.

  9. Photographic print toning - Wikipedia

    en.wikipedia.org/wiki/Photographic_print_toning

    t. e. In photography, toning is a method of altering the color of black-and-white photographs. In analog photography, it is a chemical process carried out on metal salt-based prints, such as silver prints, iron-based prints ( cyanotype or Van Dyke brown ), or platinum or palladium prints. This darkroom process cannot be performed with a color ...