new_contents: def polar2cart(r, theta, center):
  
      x = r  * np.cos(theta) + center[0]
      y = r  * np.sin(theta) + center[1]
      return x, y
  
  def img2polar(img, center, final_radius, initial_radius = None, phase_width = 3000):
  
      if initial_radius is None:
          initial_radius = 0
  
      theta , R = np.meshgrid(np.linspace(0, 2*np.pi, phase_width), 
                              np.arange(initial_radius, final_radius))
  
      Xcart, Ycart = polar2cart(R, theta, center)
  
      Xcart = Xcart.astype(int)
      Ycart = Ycart.astype(int)
  
      if img.ndim ==3:
          polar_img = img[Ycart,Xcart,:]
          polar_img = np.reshape(polar_img,(final_radius-initial_radius,phase_width,3))
      else:
          polar_img = img[Ycart,Xcart]
          polar_img = np.reshape(polar_img,(final_radius-initial_radius,phase_width))
  
      return polar_img
      
      
      
  #%%
  polar_img = img2polar(x_t1, [100,100], 80, None, 80)
subject: Add files via upload