What does “software-enhanced” resolution mean?
The scanner actually scans the image at 300 dpi and then the scanner’s device driver provides the option of mathematically decreasing or increasing the number of dots per inch that are stored for that image. You also see enhanced resolution stated as “interpolated” resolution. • What is the color depth of a scanned image? Color depth is the number of shades (variations) of colors that can be obtained from an image. The more shades of color the scanner captures, the truer to the original any reproduction of the scanned image appears. When you scan an image, the pixel data (color depth) for each pixel is 24-bit (16 million color variations, 8-bit/color) for color, or 8-bit (256 shades) for grayscale images (black-and-white photos). The “Black-and-White” resolution setting records the data as either black or white in a 1 bit format. • Why are there different choices of scanning resolutions, and which one should I use to scan my images? Having choices for scanning resolution allows you to
