The image processing method
The image of the annular polar coordinate conversion makes the panorama image is expanded, it is possible to shift the position of the central axis between a full imaging apparatus of the optical axis of the hole (H) (L2) of the deformation can be corrected.
Abstract
The present invention provides an image processing method. The image processing method comprising: inner circle and a step of extracting from the outer annular image; step the extracted center circle and the outer circle of the respectively determined; and the processing center as a reference when performing polar coordinate conversion sequentially moving between the inner and the outer circle center center, while the step of converting the image into the panoramic expansion. Thus, the image of the annular polar coordinate conversion makes the panorama image is expanded, it is possible to shift the position of the central axis between a full imaging apparatus (10) of the optical axis of the hole (H) (L2) of the deformation can be corrected. Wherein said annular image is a pair of side wall surface of the hole (H) through the full range of shooting imaging means (10) is obtained.