System and method for sharpening of digital images
Sharpening of edges in digital images without introducing unwanted artifacts is accomplished by first sharpening the digital image using a conventional sharpening filter. The digital image is separately processed with dilation and erosion operators to respectively grow the spatial extent of bright r...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Sharpening of edges in digital images without introducing unwanted artifacts is accomplished by first sharpening the digital image using a conventional sharpening filter. The digital image is separately processed with dilation and erosion operators to respectively grow the spatial extent of bright regions and shrink the spatial extent of bright regions. The sharpened, dilated and eroded images are then combined to produce a sharpened image that preserves the sharpened spatial transitions at the edges while suppressing the local contrast enhancement and any ringing. |
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