搭建直播带货平台，equalizeHist直方图均衡化

搭建直播带货平台，equalizeHist直方图均衡化实现的相关代码

```handlebars
void equalizehist(Mat &src, Mat &dst)
{
dst.create(src.size(), src.type());

// 计算直方图
int histogram[256] = { 0 };
int totalnum = src.rows*src.cols;
uchar *data = src.data;
for (int i = 0; i < totalnum; ++i)
{
++histogram[data[i]];
}

//计算分布函数,也就是变换函数f(x)
int LUT[256], sum = 0;
for (int i = 0; i < 256; ++i)
{
sum += histogram[i];
LUT[i] = 255.0*sum / totalnum;
}

//灰度变换
uchar *dataOfSrc = src.data;
uchar *dataOfDst = dst.data;
for (int i = 0; i < totalnum; ++i)
dataOfDst[i] = LUT[dataOfSrc[i]];
}
```

 

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