Image processing device, image processing method, and non-transitory recording medium

摘要

The binary processor of a digital camera turns an image targeted to recognize a particular shape into a binary image. The searcher searches for a valid pixel that is a pixel satisfying a given condition from the binary image. The determiner determines whether the region comprising a set of valid pixels has a particular shape when it is determined that a valid pixel is detected during the search. The retainer retains position information showing the position of the region comprising the set of valid pixels and determined to have the particular shape when the determiner determines that the region has the particular shape.

主权项

1. An image processing device, comprising:
an image acquirer which acquires an image; a searcher which searches for a pixel satisfying a given condition from the image acquired by the image acquirer; a first determiner which determines whether the pixel satisfying the given condition is detected during the search by the searcher; a second determiner which determines whether a region comprising a set of pixels has a particular shape when the first determiner determines that the a pixel satisfying the given condition is detected; and a retainer which retains position information showing a position of the region comprising the set of pixels when the second determiner determines that the region has the particular shape, wherein the second determiner obtains a length of the region in a first direction by counting a number of pixels successively present in a given direction from the pixel satisfying the given condition under a same condition, then determines whether the region has the particular shape by determining whether the obtained length satisfies a particular condition with respect to a length of the region in a second direction.