Patent ID: 6771813
Filing Date: 2004-08-03
Classification: G06K,G06T

Abstract:
An image processing apparatus, comprising:a read information obtaining unit to obtain read information about an input image, including a local area extraction unit to extract a local area from the input image; and a color difference information extraction unit to extract color difference information about the input image from the local area; a unicolor range setting unit to set a unicolor range of the input image according to the read information about the input image, including a threshold setting unit to set a labeling threshold for the input image according to the color difference information; and a labeling unit to label the input image by assigning a same label to a connection picture element in the unicolor range set by said unicolor range setting unit, including an average color computation unit to compute an average color of connection areas assigned the same label; and a color difference computation unit to compute a color difference between the average color of the connection area and a color of a picture element adiacent to the connection area, said labeling unit assigning the same label of the connection area to the picture element when the color difference is not greater than the labeling threshold.