To use patterns of different colored pixels to create blended colors; or, to use dots of different sizes to simulate
greyscale images. (see below).
A printing or display device may have only a small number of greyscale or color values for each device pixel.
However, if the viewer is sufficiently distant from the printed page or display, the value of neighbouring pixels can be
set so that the viewer’s eye integrates several pixels to achieve an apparent improvement in the number of levels or
colors that can be reproduced.
A measure of dots in a square inch where the individual element is a round dot on the printed page.
Dots Per Inch, equivalent to Pixels Per Inch. An expression of resolution of a scanned image.
Digital Signal Processor, does image enhancement in real-time while scanning.
Dual 2D-Adaptive Enhancement:
Enhancement processing on the foreground and background separately. Processing is performed on-the-fly. The
separate enhancement processes are simultaneously performed on different drawing aspects.
A measurement of scanner quality; the density difference between highlights and shadows.
Modify an entry using standard Windows text-editing techniques.
The light sensitive silver, coated on the clear acetate film base, that forms the photograph when a picture is taken and
the film is developed.
Distributing all color or tone equally along a density range.
The format in which a scanned picture is saved. Many programs can insert or import a picture from a file, if it is saved
in a file format that the program supports. Common file formats include TIFF (Tagged Image File Format), BMP
(Windows bitmap), JPEG (Joint Photograph Expert Group), and FPX (FlashPix format).
To flip the picture left/right.
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