Konica-minolta PagePro 1380 MF User Manual download pdf (Page 44)

User interface operation46

Black and White

Black and White represents the image in black and white only, without inter-

mediate shades of gray in-between. That means each pixel of the image is

either 100% black or 100% white. Black and White is the best choice of

image type for scanning text or a pen or ink drawing. Since only 1 bit of black

or white information is required for each pixel , the disk space required for

saving a line art image is only about 1/24 of that required to save a 24-bit

True Color image.

Black and White Image

A combination of the words “picture” and “element,” a pixel is a single dot

on a computer display or in a digital image.

8-Bit Gray

A single-channel image consists of at least 256 shades of gray. An 8-bit scan-

ner produces a grayscale image with 1,024 shades of gray between pure

black and pure white. Choose this option for scanning black-and-white photo-

graphs.

With 8 bits of color information per pixel, the file size of an image is eight

times larger than that of a black-and-white image and 1/3 the size of a 24-bit

color image.

8-Bit Gray Image

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Konica-minolta PagePro 1380 MF User Manual Page 44