I want to output the minimum value from the distance information obtained from the depth sensor.

Is there any good way?

cout<<min(depth[i])<endl;

I tried it in , but it didn't work.

#include "stdafx.h"     
# include <vector>
# include <algorithm>

using namespace std;

NUI_LOCKED_RECT depthData={0};
depthFrame.pFrameTexture->LockRect(0,&depthData,0,0);
USHORT*depth=(USHORT*)depthData.pBits;

LONG registerX = 0;
LONG registerY = 0;
cv::Mat bufferMat=cv::Mat::zero(height, width, CV_16UC1);
US>ushort*pBuffer=reinterpret_cast<ushort*>(depthData.pBits);
US>ushort bb [307200];

for(inty=0;yy<480;yy++){
    for(int xx=0;xx<640;xx++){
        unsigned int index=yy*640+xx;
        bb[index] = NuiDepthPixelToDepth(pBuffer[index]);
    }
}
for(inty=0;y<480;y++){
    for(intx=0;x<640;x++){
        kinect->NuiImageGetColorPixelCoordinatesFromDepthPixelAtResolution (CAMERA_RESOLUTION, CAMERA_RESOLUTION, 0, x, y, *depth, & registerX, & registerY);
        if((registerX>=0)&(registerX<640)&(registerY>=0)&(registerY<480)){
            bufferMat.at<ushort>(registY, registerX)=*depth;
        }
        depth++;

        int index = x + y * width;
        int z = bb [index];
        // printf("pixel number x%d||y%d, distance information %d\n", x, y, bb[index]);
        cout<<min(bb[index])<endl;

Error

The argument list does not match the instance of the over-toaded function min (argument type ushort)

c++ opencv kinect

2022-09-30 18:11

1 Answers

The phrase "minimum" means "out of several" is the minimum.In contrast, min(bb[index]) has given the presentation code ushort bb[307200]; only one value, so the compiler is angry.

Standard library functions have std::min and std::min_element examples.

#define elementsof(a) (sizeof(a)/sizeof(0[a]))
US>ushort const*minp=std::min_element(bb+0,bb+elementsof(bb));
std::cout<<*minp<<std::endl;

You will be able to see the minimum value in the

Where should I put the above code, but the presentation code asks for the minimum value every time in the loop, but as far as you can see, bb has not changed in the loop, so it is useless.Leave the code for the minimum value out of the loop and use the minimum value (copy of ) found in the loop.

# The value 307200 in the presentation code would be easier to understand if 640*480 was used. # You can't write magic numbers like 640 in the source code more than once.
# bb is 600 KiB in size, so putting it in the Win32 stack is barely enough. # You can't stop when you start poking around, so talk to yourself.

2022-09-30 18:11

If you have any answers or tips

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