Image processing apparatus, image processing system, image processing method, and computer-readable storage medium
0 Assignments
0 Petitions
Accused Products
Abstract
An image processing apparatus creates a pixel value histogram of an objective image, and approximates a predetermined range of the created histogram by a bended line formed from two straight lines. Then the apparatus extracts a pixel value at a boundary between a predetermined region and another region of the objective image in accordance with the approximation.
-
Citations
33 Claims
-
1-23. -23. (canceled)
-
24. 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 or 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; and
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. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
-
-
32. An image processing method comprising:
-
a creating step of creating a histogram on the basis of values of pixels in objective image data;
a first approximating step of approximating values of pixels included within a first image value range by using a first line;
a second approximating step of approximating values of pixels included within a second image value range by using a second line; and
determining step of determining as a representative value, a value of a pixel corresponding to an intersecting point of the first line and the second line.
-
-
33. A computer-readable storage medium storing a computer-executable program, the program comprising code for:
-
a creating step of creating a histogram on the basis of values of pixels in objective image data, a first approximating step of approximating values of pixels included within a first image value range by a using first line;
a second approximating step of approximating values of pixels included within a second image value range by a using second line; and
a determining step of determining as a representative value, a value of a pixel corresponding to an intersecting point of the first line and the second line.
-
Specification