System and method for rotation invariant representation of texture in images

摘要

Disclosed is an image processing apparatus capable of receiving an image file having a first texture representation of a rotationally variable format and transforming the texture representation into a rotation-invariant deformed texture representation. The image processing device analyzes the rotational variable texture variables of the first texture representation and arranges the variables along the radial lines extending through the rotational invariant texture variables or selected pixels arranged in the circular rings for the selected pixel Transformed texture parameters into rotation-invariant texture variables. In a second embodiment, the image processor may use angular separation of the radial lines to determine the angular rotation of the rotated version of the image file.