在C#中执行多个图像平均 [英] Performing multiple image averaging in c#

问题描述

我希望从我拥有的相同大小的3张不同图像中计算出平均图像.我知道这可以在matlab中轻松完成..但是我该如何在C#中实现呢?还有我可以直接用于此目的的Aforge.net工具吗?

I wish to calculate an average image from 3 different images of the same size that I have. I know this can be done with ease in matlab..but how do I go about this in c#? Also is there an Aforge.net tool I can use directly for this purpose?

推荐答案

我找到了一篇有关SO的文章，该文章可能会为您指明正确的方向.这是代码(不安全)

I have found an article on SO which might point you in the right direction. Here is the code (unsafe)

BitmapData srcData = bm.LockBits(
            new Rectangle(0, 0, bm.Width, bm.Height), 
            ImageLockMode.ReadOnly, 
            PixelFormat.Format32bppArgb);

int stride = srcData.Stride;

IntPtr Scan0 = srcData.Scan0;

long[] totals = new long[] {0,0,0};

int width = bm.Width;
int height = bm.Height;

unsafe
{
  byte* p = (byte*) (void*) Scan0;

  for (int y = 0; y < height; y++)
  {
    for (int x = 0; x < width; x++)
    {
      for (int color = 0; color < 3; color++)
      {
        int idx = (y*stride) + x*4 + color;

        totals[color] += p[idx];
      }
    }
  }
}

int avgB = totals[0] / (width*height);
int avgG = totals[1] / (width*height);
int avgR = totals[2] / (width*height);

这里是文章的链接:如何计算位图

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