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The difference between the non-photo blue and black ink is great enough that digital image manipulation can separate the two easily. If a black-and-white bitmap setting is scanned in, the exposure or threshold number can be set high enough to detect the black ink or dark images being scanned, but low enough to leave out the non-photo blue.
Apple Color OneScanner. The OneScanner was a series of flatbed scanners marketed by Apple Computer during the early 1990s. The original OneScanner model was introduced in 1991 to replace the earlier Apple Scanner, offering 8-bit (256 shades) greyscale scanning. [1]
The Color Dodge blend mode divides the bottom layer by the inverted top layer. This lightens the bottom layer depending on the value of the top layer: the brighter the top layer, the more its color affects the bottom layer. Blending any color with white gives white. Blending with black does not change the image.
Raster images are stored on a computer in the form of a grid of picture elements, or pixels.These pixels contain the image's color and brightness information. Image editors can change the pixels to enhance the image in many ways.
Alexander Murray and Richard Morse invented and patented the first analog color scanner at Eastman Kodak in 1937. Intended for color separation at printing presses, their machine was an analog drum scanner that imaged a color transparency mounted in the drum, with a light source placed underneath the film, and three photocells with red, green, and blue color filters reading each spot on the ...
This list of monochrome and RGB palettes includes generic repertoires of colors (color palettes) to produce black-and-white and RGB color pictures by a computer's display hardware. RGB is the most common method to produce colors for displays; so these complete RGB color repertoires have every possible combination of R-G-B triplets within any ...
Monochrome photography is photography where each position on an image can record and show a different amount of light , but not a different color . The majority of monochrome photographs produced today are black-and-white , either from a gelatin silver process , or as digital photography .
Because hand-coloured photographs, like colour photographs, are more sensitive to light and UV radiation, storage should be in a dark location. The storage area should be secure and monitored for internal threats – such as change in temperature or humidity due to HVAC malfunction, as well as external threats, such as theft or natural disaster.