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Image-Pro Plus Fast-Fourier Transform (FFT) Example
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Image-Pro Plus Fast-Fourier Transform (FFT) Example 1. Before processing the image is marred by "noise". 2. An FFT of the image is displayed. Due to its regularity, the noise pattern stands out as four spikes. One of the spikes has been marked inside an AOI (Area of Interest) preparatory to its deletion. 3. The four noise spikes, which corresponded to the regular noise patterns, have been deleted from the FFT. 4. When the corrected FFT from #3 is applied, the image is clean. http://www.mediacy.com/index.aspx?page=AH_FFTExample [ À´×Ô¿ÆÑмÒ×å Ó¢ÀֺР] |
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