Patent ID: 8811698

Claim:
An image processing apparatus that detects an abnormal part from an intraluminal image, the apparatus comprising: a processor; and a memory storing computer-readable instructions that, when executed by the processor, implement: a gradient information calculating unit that calculates gradient information of each of pixels, based on pixel values of the intraluminal image; a closed region creating unit that, based on the gradient information, creates a closed region so that the closed region has a boundary with pixels with positions satisfying a condition where the closed region does not include, on an inside thereof, any pixel of which a gradient strength is equal to or higher than a predetermined value, and also, a boundary of the closed region does not curve toward an interior of the closed region, with a curvature equal to or larger than a predetermined value; and an abnormal part detecting unit that detects the abnormal part from the inside of the closed region.