Konica Minolta pagepro 1380MF pagepro 1380MF User Manual English - Page 44
Black and White, 8-Bit Gray
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Black and White Black and White represents the image in black and white only, without intermediate 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 scanner produces a grayscale image with 1,024 shades of gray between pure black and pure white. Choose this option for scanning black-and-white photographs. 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 46 User interface operation