Kodak 861 2459 User Guide - Page 65
Color Dropout options, OCR Optical Character Recognition and ICR Intelligent Character
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Color Dropout options Electronic color dropout is used to eliminate a form's background so that a document management system may automatically - through OCR (Optical Character Recognition) and ICR (Intelligent Character Recognition) technology - read pertinent data without interference from the lines and boxes of the form. You can select the desired dropout color, and alter the filter threshold and background. Dropout Color the i30/i40 Scanners can drop out red, green or blue. None is the default. Background Value this value will be substituted in the grayscale (pre-thresholded) image for the color being removed. Therefore, this value should be higher than the threshold value selected on the Scanner Settings dialog box for this pixel to become the background color. The default value is 245. For example, if you are scanning a white document with a green form and you have selected a binary threshold value of 127, you should choose an electronic color dropout background value greater than 127 so the substituted pixel will be white in the dropped-out image. Threshold value the value that is used to identify the color which will be dropped out. This value is applied to the color area. Color with a Red/Green/Blue component more than the entered value is dropped. This setting determines how much of the selected color is dropped out. A lower value will leave more of the selected color in, while a higher value will drop more of the selected color out. The default value is 175. 62 A-61512 May 2006