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Nonlinear Optical Spatial Filtering for Medical Image Processing

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Figure

Figure 1 shows the experimental set up (4-f z scan setup) for nonlinear spatial filtering image processing
Figure 2. Nonlinear refractive index characteristic display of Mn(acac)3 (closed z scan) and the variation of the spot size as a function of the sample position
Figure 4 shows the result of edge enhancement of a binary image placed at low intensity regions with no nonlinear effect present (a) and high intensity with nonlinear effect is present (b), Figure 4(a) represents original
Figure 4. Processed images showing the edge enhancement (a) original object image at low intensity (b) edge enhancement image at high intensity

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