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Data is downloaded from: https://course.cse.ust.hk/comp5421/Password_Only/projects/photo/photo_input.html

Some results are shown below.

data02:

The output of surface normal in x, y, z component are as follows:

The N-L image is as follows:

After graph cut:

After 3d reconstruction:

data06:

The N-L image is as follows:

After graph cut:

Compare the z component of the surface normal before/after graph cut as follows: