Canon GP200 Service Manual page 99
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4. Sharpness/Filter Processing
a. Sharpness/Filter Processing
In sharpness/filter processing, computations are performed so that a crisp or soft image may be
obtained as specified on the control panel.
Figure 3-328b shows the output level occurring as the result of selecting 'sharpness mode weak' for
the image data shown in Figure 3-328a.
In 'sharpness mode weak', the variations in the density of an image are smoothed out to generate a
soft image. (The effect may be used to make moire less conspicuous.)
Figure 3-328c shows the output level occurring when 'sharpness mode strong' is selected.
In 'sharpness mode strong', the variations in the density of an image are emphasized to generate a
crisp image.
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Figure 3-328b Sharpness Mode Weak
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Figure 3-328a
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After output
CANON GP215/200 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
Main scanning direction
After output
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Figure 3-328c Sharpness Mode Strong
3. OPERATIONS AND TIMING
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3–45
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