Patent ID: 8437553

Claim:
An image detection device detecting a specific image to be searched for from an image, the device comprising: a size changing means for changing a size of an original image according to a set scaling factor; a detection means for detecting the specific image to be searched for within a detectable size range of the image detection device from the image, the size of which has been changed by the size changing means; means for determining an absent area where another specific image cannot exist on the basis of the detected specific image, when the specific image to be searched for is detected by the detection means, a change means for changing the scaling factor; and a control means for performing control so as to make the processing by the size changing means and the processing by the detection means to be carried out again using the scaling factor changed by the change means, wherein the control means excludes a part corresponding to the absent area from an object to be detected by the detection means, when making the processing by the size changing means and the processing by the detection means to be carried out again using the changed scaling factor.