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| Q. |
Which of the following techniques is based on the Fourier transform? |
| A. | structural |
| B. | spectral |
| C. | statistical |
| D. | topological |
| Answer» B. spectral | |
| Explanation: spectral techniques are based on properties of the fourier spectrum and are used primarily to detect global periodicity in an image by identifying high energy, narrow peaks in the image. | |
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