IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM

摘要

There are provided an image processing apparatus, an image processing method and an image processing program for transforming a target image having no contour of straight line portions. An ellipse El by which the target image is approximated is calculated (S20), a center candidate O A of the target image is decided (S21), a first polygon P1 associated with the ellipse and the center candidate is calculated (S22), a projective transformation matrix for projectively transforming the first polygon into a second polygon P1' associated with an ellipse whose center is a point where the center candidate is projectively transformed is calculated (S23), and the target image is projectively transformed based on the projective transformation matrix to obtain a transformation image (S24).