| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide technique for generating a histogram with high speed. <P>SOLUTION: A histogram generation device includes: determination means for, on the basis of object data for generating a histogram, determining a plurality of division candidate points that are to be candidates for division points to determine respective segments of a histogram; change value calculation means for respectively calculating change values of frequency of the object data at the respective division candidate points; selection means for selecting fewer numbers of division candidate points than the number of division candidate points determined by the determination means by sampling the plurality of division candidate points on the basis of the respective change values calculated by the change value calculation means; and histogram generation means for generating a histogram of the object data by using the division candidate points selected by the selection means. <P>COPYRIGHT: (C)2012,JPO&INPIT |
