[問題] 如何使用snake已回收

看板MATLAB作者kitkat (KILALA)時間16年前 (2009/02/24 20:50)推噓0(0推 0噓 0→)

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我看了一些文章介紹了snake的用法理論看起來我了解了上網得到的一個snake.m 想要使用它但是卻看不懂怎麼去輸入設定參數請問有沒有人使用過呢?? 可不可以撥空幫我講解一下各參數是..?? 謝謝~!!!^_^ 以下就貼出程式裡的解說..因為我一直看都不瞭解 Orz [snake_pnts,e] = snake(pnts, alpha, beta, ... max_delta_y, resol_y, max_delta_x, resol_x, feat_img) % pnts Starting contour. Each row is a [x,y] coordinate. % alpha Energy contributed by the distance between control points. % Set to zero if length of slope doesn't matter. % beta Energy contributed by the curvature of the snake. Larger % values of beta cause bends in the snake to have a high cost % and lead to smoother snakes. % max_delta_y Max number of pixels to move each contour point vertically % resol_y Contour points will be moved by multiples of resol_y % max_delta_x Analog to max_delta_y % resol_x Analog to resol_y % feat_img 2D-Array of the feature responses in the image. For example % it can contain the magnitude of the image gradients % % Outputs: % snake_pnts New contour points. % e Energy value of these new contour points -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.128.142.124