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Delaunayに関するkokogikoのブックマーク (5)
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kokogiko 2010/06/30
- OpenCV
- Delaunay
リンク -
opencv.jp - OpenCV-1.1pre:CV 平面細分割（Planar Subdivisions）リファレンス マニュアル -
最終変更者: 怡土順一, 最終変更リビジョン: 499, 最終変更日時: 2009-09-23 17:56:16 +0900 (水, 23 9月 2009) 画像処理（Image Processing） 勾配，エッジ，コーナー，特徴（Gradients, Edges, Corners and Features） サンプリング，補間，幾何変換（Sampling, Interpolation and Geometrical Transforms） モルフォロジー演算（Morphological Operations） フィルタと色変換（Filters and Color Conversion） ピラミッドとその応用（Pyramids and the Applications） 画像分割，領域結合，輪郭検出（Image Segmentation, Connected Components and
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OpenCVでドロネー三角形メモ - //archive AGEN;
ドロネー三角形(delaunay triangulation)という有名らしい幾何アルゴリズムがあって、画像処理で使われる時の文脈で話せば、与えられた点群に対してそれぞれをいい具合に結ぶ辺を返す。 で、素晴らしいことにOpenCVで実装されてる。http://opencv.jp/opencv-1.0.0/document/opencvref_cv_subdivisions.html 詳しい使い方は"OpenCV\samples\c\delaunay.c"参照。。 ただ、サンプルプログラムのような単純な描画処理では何の問題もないのですが、もともと通し番号のついた点群等を持っていて、これらの隣接関係を整理したいとき等は、ドロネー関数に座標値しか渡せないので不便。（当然アルゴリズム適用後には座標値しか戻ってこず、元の点群との対応を取るのが面倒。） そこで、関数に渡した直後に、関数内部で保有する点
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