| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly accurate feature extraction device capable of suppressing increase in the processing loads. SOLUTION: The feature extracting device sets a rectangular template constituting a plurality of rectangular blocks for an image; obtains a reference luminance value which is the average of the luminance values of the rectangular blocks included in the rectangular plate and an individual luminance value which is the average luminance of each block for the respective rectangular blocks; allocates a first label to the rectangular blocks, when the individual luminance value is equal to or larger than the reference luminance value; allocates a second label to the rectangular blocks, when the individual luminance value is smaller than the reference luminance value; and obtains a feature amount containing spatial distribution information which is the array of the first label and the second label as the feature amount of the rectangular template set for the image. COPYRIGHT: (C)2011,JPO&INPIT
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