Epson Perfection 1200U User Manual - TWAIN - Page 98

Glossary, monochrome, pixel, resolution, Threshold

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monochrome Black and white images, or images represented only by the intensity of luminosity. pixel Short for picture element. Every image is composed of a number of pixels. Pixels are also counted in units of dots. resolution Indication of how finely an image is resolved into pixels. Measured in dots per inch (dpi), pixels per inch (ppi), or samples per inch (spi). scan An operation performed by the sensor and the carriage of a scanner. The sensor "reads" the colors in an image, and sends the color information to the computer as digital data. Threshold An EPSON TWAIN option that sets the point at which gray values in an image are represented as either black or white. Glossary Page 98

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Glossary
Page 98
monochrome
Black and white images, or images represented only by the intensity of
luminosity.
pixel
Short for picture element. Every image is composed of a number of
pixels. Pixels are also counted in units of dots.
resolution
Indication of how finely an image is resolved into pixels. Measured in dots
per inch (dpi), pixels per inch (ppi), or samples per inch (spi).
scan
An operation performed by the sensor and the carriage of a scanner. The
sensor “reads” the colors in an image, and sends the color information to
the computer as digital data.
Threshold
An EPSON TWAIN option that sets the point at which gray values in an
image are represented as either black or white.