Canon 2911B002 On-screen Manual

Contents

Canon 2911B002 On-screen Manual Manual pdf 452 page image

Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors >Setting ThresholdSetting ThresholdThe brightness of color and grayscale images is expressed in a value between 0 and 255. However, increating black and white images, all colors are mapped to either black (0) or white (255). Threshold isthe borderline value that determines a color as black or white. By adjusting the threshold level, you cansharpen text in a document or reduce show-through in newspapers.This function is available when Color Mode is Black and White.In ScanGear's Advanced Mode, click (Threshold).Adjusting ThresholdMove (slider) to the right to increase the threshold value and thus increase the black areas. Move theslider to the left to decrease the value and thus increase the white areas. You can also enter a value (0 to255).NoteClick Defaults to reset all adjustments in the current window.Top of PagePage 452 of 623 pagesSetting Threshold