Edge detection apparatus and edge detection method
An edge detection apparatus according to the present invention, includes: a detection unit configured to detect a dispersion degree of gradation values of input image data; a determination unit configured to determine detection sensitivity, which is edge detectability, based on the dispersion degree...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An edge detection apparatus according to the present invention, includes: a detection unit configured to detect a dispersion degree of gradation values of input image data; a determination unit configured to determine detection sensitivity, which is edge detectability, based on the dispersion degree detected by the detection unit; and an edge detection unit configured to detect an edge from an input image based on the input image data, at the detection sensitivity determined by the determination unit, wherein in a case where the dispersion degree is low, the determination unit determines a lower detection sensitivity, compared with a case where the dispersion degree is high. |
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