Photometric Stereo:
Extracting Gradient and Albedo

One useful property of photometric stereo is that it implicitly separates the component of the image due to surface topography from the component due to surface colouring. This property makes photometric stereo extremely useful in several applications.

Perceived image
Topographical image	Albedo image

Another example of the results that can be obtained using photometric stereo is shown below.

Photometric Stereo: Extracting Gradient and Albedo

Photometric Stereo:
Extracting Gradient and Albedo