Edge detection apparatus and edge detection method

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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1. Verfasser: Yamagishi, Masaharu
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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creator Yamagishi, Masaharu
description 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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subjects CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
title Edge detection apparatus and edge detection method
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