无法将struct值插入inRange openCV

时间:2016-10-12 06:01:49

标签: c++ c opencv struct

我似乎无法将结构的成员值插入到inRange函数中。该程序编译但阈值不能正常工作。如果我不是从结构中插入一个值,那么它可以正常工作。

struct objects{
   int iLowH;
   int iHighH;

   int iLowS; 
   int iHighS;

   int iLowV; 
   int iHighV;

   Point coordinate;
};


int iLowH = 0;
int iHighH = 30;

int iLowS = 182; 
int iHighS = 255;

int iLowV = 0;
int iHighV = 255;

int refArea=10000;

orange.iLowH = 0;
orange.iHighH = 100;
orange.iLowS = 182;
orange.iHighS = 255;
orange.iLowV = 100;
orange.iLowH = 255;

inRange(hsvImage, Scalar(iLowH, iLowS, iLowV), Scalar(iHighH, iHighS, iHighV), threshold);

imshow("hsv",threshold);

这很好用

struct objects{
   int iLowH;
   int iHighH;

   int iLowS; 
   int iHighS;

   int iLowV; 
   int iHighV;

   Point coordinate;
};


int iLowH = 0;
int iHighH = 30;

int iLowS = 182; 
int iHighS = 255;

int iLowV = 0;
int iHighV = 255;

int refArea=10000;

orange.iLowH = 0;
orange.iHighH = 100;
orange.iLowS = 182;
orange.iHighS = 255;
orange.iLowV = 100;
orange.iLowH = 255;

inRange(hsvImage, Scalar(orange.iLowH, orange.iLowS, orange.iLowV), Scalar(orange.iHighH, orange.iHighS, orange.iHighV), threshold);

imshow("hsv",threshold);

这不起作用。阈值图像仅显示黑色。如果我改变iLowH = orange.iLowH等的值,它也将无效。如果我改变其中一个它也不会起作用。如果我打印橙色的值,它会显示正确的值,如果我打印橙色的数据类型,它会为每个值显示int。

1 个答案:

答案 0 :(得分:0)

orange.iHighV未初始化。在您的代码中:

orange.iLowH = 0;
orange.iHighH = 100;
orange.iLowS = 182;
orange.iHighS = 255;
orange.iLowV = 100;
orange.iLowH = 255;
//      ^^ overwrites previous value 0, should probably be iHighV instead.

两个版本(iHighH = 30orange.iHighH = 100iLowV = 0orange.iLowV = 100)的实际阈值不同,因此也可能导致不同的结果。