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The following examples show the effect of a Sharpen filter
applied to a number of different images. Note that because JPEG
compression has been used to compress these images some of the fine
detail applied by the effect is not visible.
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Original Image before Sharpen Filter
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After Sharpen Filter Applied.
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Original Image before Sharpen Filter
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After Sharpen Filter Applied.
Note that as well as enhancing edges the effect has also
enhanced 'mosquito noise' artifacts from the JPEG compression used
on the original image. These are especially visible around the legs
of the astronaut.
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Original Image before Sharpen Filter
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After Sharpen Filter Applied.
Note that the main effect here has been to enhance noise rather
than improve quality.
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