After the session we had a chance to take photos of two big names with our color-filtered aperture camera. Though the extracted matte exhibits the limitations of our matting algorithm (especially around the hair, whose color happened to be very close to the untextured background ceiling), we successfully created a composite image with some color correction.
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| Captured image | Extracted depth map |
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| Extracted alpha matte | Composite image |
As we described in the paper, one of the limitations of our method is that it cannot handle entirely pure-red objects (as well as entirely pure-green objects and entirely pure-blue objects). But this does not mean that objects must not be mostly red. To prove that our method works for mostly red objects, after the session we took a photo of one of the red chairs in the session room and applied our method to it, as Dr. Chi-Keung Tang, who chaired the session, suggested. This chair is mostly red but not entirely pure-red because: 1) it is not entirely red as it has a silver frame, 2) it is not purely red as this orangish red has a sufficient green component. Though the results were not perfect, our method worked, as shown below.
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| Captured image | Extracted depth map |
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| Extracted alpha matte | Composite image |