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An optical answer sheet or bubble sheet is a special type of form used in multiple choice question examinations. OMR is used to detect answers. The Scantron Corporation creates many optical answer sheets, although certain uses require their own customized system. [citation needed] Optical answer sheets usually have a set of blank ovals or boxes ...
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It includes 24 patches in a 4 × 6 grid, each slightly under 2 inches (5.1 cm) square, made of matte paint applied to smooth paper, and surrounded by a black border. Six of the patches form a uniform gray lightness scale, and another six are primary colors typical of chemical photographic processes – red, green, blue, cyan, magenta, and yellow.
The actions taken for Patch 2, Patch 3, and Patch T can be configured in a document scanning application. Kodak's Capture Software assigns these default actions: [3] Patch 3 creates a new job and throws away the image with the patch; Patch 2 starts a new document and keeps the image; Patch T starts an attachment and throws away the image.
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Cheaper images, like advertisements, relied heavily on an initial black print (not always a lithograph), on which colours were then overprinted. To make an expensive reproduction print, once referred to as a "chromo", a lithographer, with a finished painting in front of him, gradually created and corrected the many stones using proofs to look ...
In experiment 2, stimulus conflict-words and color patches were used, and participants were required to say the ink-color of the letters independently of the written word with the second kind of stimulus and also name the color of the patches. If the word "purple" was written in red font, they would have to say "red", rather than "purple".
These tests alter the manuscript in some way, usually by removing some pigment to test a sample. They are generally reliable but results are not always clear. [5] Non-Invasive These tests do not alter the manuscript and are much better for conservation purposes than the invasive methods of identification. Some methods include: Microscopes