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[Special Effects] IplImageToTBitmap DL : 0: 將openCV中之影像格式轉換成BCB可用之bmp格式,詳盡說明.-will openCV which is a video format conversion BCB is available bmp format described in detail.
Update : 2025-02-17 Size : 1kb Publisher : 李寧
[Special Effects] otsu111 DL : 0: Otsu算法步骤如下：设图象包含L个灰度级(0,1…,L-1)，灰度值为i的的象素点数为Ni ，图象总的象素点数为N=N0+N1+...+N(L-1)。灰度值为i的点的概率为： P(i) = N(i)/N. 门限t将整幅图象分为暗区c1和亮区c2两类，则类间方差σ是t的函数： σ=a1*a2(u1-u2)^2 (2) 式中，aj 为类cj的面积与图象总面积之比，a1 = sum(P(i)) i->t, a2 = 1-a1 uj为类cj的均值，u1 = sum(i*P(i))/a1 0->t, u2 = sum(i*P(i))/a2, t+1->L-1 该法选择最佳门限t^ 使类间方差最大，即：令Δu=u1-u2，σb = max{a1(t)*a2(t)Δu^2}-int otsu (IplImage*image, int rows, int cols, int x0, int y0, int dx, int dy, int vvv) { unsigned char*np // 图像指针 int thresholdValue=1 // 阈值 int ihist[256] // 图像直方图，256个点 int i, j, k // various counters int n, n1, n2, gmin, gmax double m1, m2, sum, csum, fmax, sb ·····
Update : 2025-02-17 Size : 1.48mb Publisher : 燕子一舞