Spherical Distortion

Lens distortion using the spherical distortion model

Setup

pip install git+https://github.com/dompm/spherical_distortion.git

Usage

from sphericaldistortion import crop_panorama, distort, undistort

Crop from a 360 panorama

crop = crop_panorama('data/pano.jpg', # panorama or path to panorama
                     height=900, # height of the cropped image
                     width=1200, # width of the cropped image
                     f=830, # focal length in pixels
                     xi=0.75, # distortion parameter
                     az=0, # azimuth of the camera in radians
                     el=-0.35, # elevation of the camera in radians
                     roll=0 # roll of the camera in radians
                     )

Pano	Result

Apply distortion

distorted_image = distort('data/straight_crop.jpg', # image or path to image
                          f=320, # focal length in pixels
                          xi=0.75 # distortion parameter
                          )

Input	Result

Undistort image

undistorted_image = undistort('data/distorted_crop.jpg', # image or path to image
                              f=830, # focal lenght in pixels
                              xi=0.75 # distortion parameter
                              )

Input	Result