Patent ID: 6262813
Filing Date: 2001-07-17
Classification: G06T

Abstract:
An image data processing apparatus, comprising:a data window which successively captures dot patterns, each dot pattern having a dot of interest and surrounding dots, to read data of bit-mapped image data;a pattern recognition mechanism recognizing a figure of a line segment formed between black and white dot areas included in each of said captured dot patterns, based on said read data from each of said dot patterns, the pattern recognition mechanism generating a n-bit code that has a value corresponding to said recognized figure of the line segment, where n is an integer, the n-bit code having up to 2.sup.n different values each representing a specific figure of the line segment;a determining mechanism determining whether said dot of interest needs a correction based on the value of said n-bit code;an information converter converting a plurality of values of said n-bit code to one of two predetermined values which indicate whether said dot of interest is white or black when said dot of interest needs no correction, and then outputting said n-bit code having one of said two predetermined values, and outputting said n-bit code without conversion when said dot of interest needs said correction;a memory block storing a number of correction data, and including correction data for cases when said dot of interest needs correction and for two substituting cases when said dot of interest needs no correction, each of said correct data uniquely corresponding to one of said 2.sup.n different values, and then outputting one of said plurality of correction data when accessed with said corresponding n-bit code.