def align_img()

in preprocess_img.py [0:0]

• 8 lines of code
• 3 McCabe index (conditional complexity)

def align_img(img,lm,lm3D):

	w0,h0 = img.size

	# change from image plane coordinates to 3D sapce coordinates(X-Y plane)
	lm = np.stack([lm[:,0],h0 - 1 - lm[:,1]], axis = 1)

	# calculate translation and scale factors using 5 facial landmarks and standard landmarks of a 3D face
	t,s = POS(lm.transpose(),lm3D.transpose())

	# processing the image
	img_new,lm_new = resize_n_crop_img(img,lm,t,s)
	lm_new = np.stack([lm_new[:,0],223 - lm_new[:,1]], axis = 1)
	trans_params = np.array([w0,h0,102.0/s,t[0],t[1]])

	return img_new,lm_new,trans_params