quadratic_transform¶
- kgpy.img.coalignment.image_coalignment.quadratic_transform(img, transform, origin, old_coord=None)¶
Apply a quadratic coordinate transformation of the form: x’ = transform[0] + transform[1]*x + transform[2]*y + transform[3]*x*y + transform[4]*x^2 + transform[5]*y^2 y’ = transform[6] + transform[7]*x + transform[8]*y + transform[9]*x*y + transform[10]*x^2 + transform[11]*y^2 about the specified origin = (x = origin[0], y = origin[1])
returns primed coordinates for use with scipy.ndimage.map_coordinates()
- Return type:
- Parameters: