Image comparing method, apparatus and program

An image comparing apparatus, for comparing a plurality of first images and a second image, comprising:

• a generating unit to convert said second image to generate a second numerical data;
• a dividing unit to divide each of a plurality of first numerical data corresponding to said plurality of first images into a plurality of parts, and divide said second numerical data into a plurality of parts;
• and
• a comparing unit to compare a first part of the divided parts of said plurality of first numerical data and a first part of the divided parts of said second numerical data,
• to output a first result, when said first part of the divided parts of said plurality of first numerical data satisfies a first condition, and
• to compare a second part of the divided parts of said plurality of first numerical data and a second part of the divided parts of said second numerical data, when the first part of the divided parts of said plurality of first numerical data satisfies a second condition.

A recording medium, in which a program which makes a computer execute processing to compare a plurality of first images and a second image is stored, the processing comprising:

• converting said second image to generate a second numerical data;
• dividing each of a plurality of first numerical data corresponding to said plurality of first images into a plurality of parts, and dividing said second numerical data into a plurality of parts;
• comparing a first part of the divided parts of said plurality of first numerical data and a first part of the divided parts of said second numerical data;
• outputting a first result, when said first part of the divided parts of said plurality of first numerical data satisfies a first condition;
• and
• comparing a second part of the divided parts of said plurality of first numerical data and a second part of the divided parts of said second numerical data, when the first part of the divided parts of said plurality of first numerical data satisfies a second condition.