Merge branch 'main' of https://lab.compute.dtu.dk/aia02506/public-exercise-material

Chapter07/w1_unwrapping_image_exercise.py

@@ -28,7 +28,7 @@ Y = center[1] + np.outer(radii,np.sin(angles))
 
 F = scipy.interpolate.interp2d(np.arange(I.shape[0]), np.arange(I.shape[1]), I)
 U = np.array([F(p[0],p[1]) for p in np.c_[Y.ravel(),X.ravel()]])
-U = U.reshape((r,a)).astype(np.uint8)
+U = U.reshape((r,a)).astype(np.int32)
 
 fig, ax = plt.subplots(1,2)
 ax[0].imshow(I, cmap='gray')