Method of extracting a region of a specific configuration and determining copy conditions
First Claim
1. In the extraction of a specific region of an image, a method of extracting a specific region comprising the steps of:
- (a) setting, in accordance with characteristics of the specific region, at least one search condition for searching for portions corresponding to an outer edge of the specific region on the basis of a predetermined image characteristic amount;
(b) searching for portions assumed to correspond to the outer edge of the specific region, and setting one of the search portions as a reference point;
(c) searching for a portion which satisfies said at least one search condition and which exists within a predetermined search range in the image, said search range being based on the reference point, and in a case in which a portion which satisfies said at least one search condition and exists within the predetermined search range is detected, setting the detected portion as a next reference point; and
(d) extracting, as a line representing an outer edge of the specific region, a line which is formed by connecting a plurality of portions of the image in the order in which said portions were set as reference points.
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Abstract
A method of extracting an outer edge in an image comprises setting at least one or more search conditions to search for edges and searching for an initial starting as a reference point. From this reference point, it is determined whether one of the search conditions are satisfied within a particular range from the reference point. When the search condition is satisfied, the portion that satisfied the search condition is set as a next reference point. The reference points are connected in the order in which they were set as reference points to extract the outer edge. The search conditions may be set in a hierarchical order so that if one condition is not met, a different search condition may be used in the search for a subsequent reference point. The search conditions may comprise density or luminance characteristics, and may be further particularized to correspond to characteristics to extract the outer edge of a human face. As a further feature, the area corresponding to the extracted outer edge region is subject to appropriate processing depending on the characteristics of the extracted region.
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Citations
25 Claims
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1. In the extraction of a specific region of an image, a method of extracting a specific region comprising the steps of:
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(a) setting, in accordance with characteristics of the specific region, at least one search condition for searching for portions corresponding to an outer edge of the specific region on the basis of a predetermined image characteristic amount; (b) searching for portions assumed to correspond to the outer edge of the specific region, and setting one of the search portions as a reference point; (c) searching for a portion which satisfies said at least one search condition and which exists within a predetermined search range in the image, said search range being based on the reference point, and in a case in which a portion which satisfies said at least one search condition and exists within the predetermined search range is detected, setting the detected portion as a next reference point; and (d) extracting, as a line representing an outer edge of the specific region, a line which is formed by connecting a plurality of portions of the image in the order in which said portions were set as reference points. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification