Olympus FLUOVIEW FV300 - Image Sharpening

APPLIED OPERATIONS/Image Processing
IV. OPERATION INSTRUCTIONS
IV . 2-230
Page
2 Median filter
The Median filter reduces noise in image while leaving the edges intact. However, it may
be ineffective in case noise is concentrated in some positions or the image is very noisy.
The operation method is identical to Laplacian filtering except for the following point. See
section 2-6-1-1-1, “Laplacian filter”.
z Click the <Median> button.
3 Low-pass filter
The low-pass filter passes the low-frequency structures. In this way, it can eliminate
small grains and provide smooth, noise-reduced image. filter format is as shown below.
121
242
121
The operation method is identical to Laplacian filtering except for the following point. See
section 2-6-1-1-1, “Laplacian filter”.
z Click the <Lowpass> button.
2-6-1-3 Image Sharpening
1 Sharpen filter
The sharpen filter turns blurred image into a clear image. The filter format is as shown
below.
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-15-1
0-10
The operation method is identical to Laplacian filtering except for the following point. See
section 2-6-1-1-1, “Laplacian filter”.
z Click the<Sharpen> button.
<Median> button
<Lowpass> button
<Sharpen> button
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