FEATURE EXTRACTION DEVICE, FEATURE EXTRACTION PROGRAM, AND IMAGE PROCESSING DEVICE

摘要

Provided is a feature extraction device capable of generating a local binary pattern from a larger number of pixels while the decrease in object detection accuracy is suppressed and the increase of processing load is suppressed. The feature extraction device comprises a sub region setting unit (433) which sets a plurality of sub regions with respect to a pixel of interest, and a binary pattern generation unit (434) which generates a local binary pattern indicating pixel value comparison relative to each sub region with respect to each pixel of interest. The sub region setting unit (433) sets (436) a region constituted by a plurality of pixels including a pixel separated from the pixel of interest as a sub region, and the binary pattern generation unit (434) calculates (437) a representative value for each sub region and generates (439) a local binary pattern indicating whether or not the difference (438) of the representative value relative to the pixel value of the pixel of interest is equal to or larger than a predetermined threshold value.