Scanner Options | Scamax 2600 / 5000 | DpuScan |
3 Image Processing Options
To optimize image quality you can set different image processing parameters. They are offered on the next two pages, separately for Front and Back camera.
Illustration 2 – Inotec Options: Front Page
Binarization MethodThe binarization method defines how the 256 possible grayscale values that come from the camera will be transformed into bitonal information (black and/or white pixels).
Fixed ThresholdOne of the 256 grayscale values is defined as the fixed threshold for the brightness. All levels above will be represented as ”white”, and all others will be represented as ”black”. This simple method is suited for "normal" documents without special colors, stains, or bad print.
Recommended Value: Brightness = 165
Automatic ThresholdThe changes in gray levels in one line of the image are used to decide what is black and what is white.
When deciding black or white, the scanner considers the previously read values of an image line. Depending on the contrast settings, deviation levels in the grayscale values are considered for the black/white decision dynamically.
Recommended Value: Brightness = 165; Contrast = 4
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