LINEAR MARKING DETECTION SYSTEM, LINEAR MARKING DETECTION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM ON WHICH LINEAR MARKING DETECTION PROGRAM IS STORED

摘要

A linear marking detection system is provided with a filter value calculation unit, a filter value threshold processing unit, and a feature value output unit. The filter value calculation unit, for each pixel of an image, calculates filter values corresponding to each of a plurality of linear marking widths using pixel values inside and outside of the linear markings. The filter value threshold processing unit selects the most suitable value from the filter values corresponding to each of the plurality of linear marking widths as a feature value. The feature value output unit, for each pixel of the image, outputs the feature value calculated by the filter value threshold processing function as the feature value corresponding to the linear marking.