After determining the document capture region, the firmware de-skews and re-samples the region as follows. Enabling IDC Captured Image Brighten calls normalization, which makes the brightness of the image uniform, and enhances contrast as a large percent of background pixels is made completely white (a smaller percent of pixels is made completely black if the firmware determines there is no danger of enhancing the contrast of a very bland area). Enabling IDC Captured Image Sharpen enhances the sharpness of the image.
IDC re-samples the image about one output pixel per input pixel for
It might take several seconds for post processing to complete, depending on the size of the captured region, the options enabled, and the scanner model.
