brightness: adjusts the lightness or darkness of an image. the higher the value, the brighter the image.

    contrast: adjusts the range between the darkest and the lightest shades in the image. the higher the contrast, the bigger the different gray scales.

    gamma: adjusts the midtone of the image without losing details of the lightest and the darkest areas.

    highlight: adjusts the highlight area of the image.

    shadow: adjusts the darkest area of the image.

    advance settings: (pc)

    click to remove r(red), g(green), or b(blue) color background to sharpen your text or drawing.

   

    invert: the invert command reverses the brightness and the color in the image. for color images, each pixel will be changed into its complementary color at the command of invert.

   

    color matching:

    adjusts the color quality of the image so that it comes close to that of the original. this function uses default parameters to adjust the image.

   

    quality/speed mode:

    choose speed mode if you need to speed up your scanning task. choose quality mode if you need a better quality of your scanning result.

   

    auto level: (mac)

    automatically adjusts the highlight and shadow areas of the scanned image to give it an optimal effect.

   

    sharpen: sharpens the scanned image. look for more selections under this item.

   

    descreen: eliminates the moire patterns commonly found in printed matter.