Patent ID: 7310444
Filing Date: 2007-12-18
Classification: G06T

Abstract:
1. An image processing apparatus comprising: creating means for creating a histogram on the basis of values of pixels in objective image data; first approximating means for approximating values of pixels included within a first image value range by using a first line; second approximating means for approximating values of pixels included within a second image value range by using a second line; determining means for determining as a representative value, a value of a pixel corresponding to an intersecting point of the first line and the second line; and a sensor for converting a radiation ray which has passed through an object to the objective image data, wherein the first pixel value range is a range including values of pixels within an area on the sensor onto which the radiation ray is incident, and the second pixel value range is a range including values of pixels within an area on the sensor onto which the radiation ray is directly incident.