This article mainly applies the built-in functions cascadeclassifier, load and detecmultiscale of opencv to implement real-time detection of human eyes on the camera!
# Include "opencv2/objdetect. HPP "# include" opencv2/highgui. HPP "# include" opencv2/imgproc. HPP "# include
The above two files can be found in path: D: \ Program Files \ opencv2.4.3 \ opencv
Modify the adaptiveskindetector. cpp of opencv and remove the complicated command line parameter input. You only need a Network Camera to run it.
In terms of principles, I roughly looked at the usage of the color information in the HSV space.
The effect is good, but it seems that the detection effect is poor for white walls, especially milky white walls and wall panels.
This is the first small item publishe
Edge Detection Based on OpenCv-Laplacian operator, scharr filter, and laplacianscharrLaplacian Operator Edge Detection
Original graph
Grayscale chart
Scharr filter Edge Detection
Original graph
X direction
Y direction
Scharr merge chart
1. Introduction to Laplacian Operators
Laplacian operator is a second-order d
Source code: http://download.csdn.net/detail/nuptboyzhb/3961668
New Content in version 1.0.x
Video motion detection
Ø create menu items, learning opencv --> opencvr entry --> video motion detection
The menu items are set as follows:
Create a Class Wizard
ØEdit code
Voidccvmfcview: onmytestsport ()
{
// Todo: add your command handler codehere
// Alt + F8 sort ou
Human Eye Detection involves two steps:
1. Face Detection to obtain the rectangular area of a person's face
2. Human Eye detection in the face rectangle area
The following are some source code:
# Include "stdafx. H "
This tutorial is actually a summary of the previous article, using FEATURES2D and Calib3d modules to discover objects in the scene ~ ~
1, Create a new console project. Read the input images.
Mat img1 = Imread (argv[1], cv_load_image_grayscale); Mat Img2 = Imread (argv[2], cv_load_image_grayscale);
2, Detect keypoints in both images.
Detecting Keypointsfastfeaturedetector Detector ();vector
3, Compute descriptors for each of the keypoints.
Canny edge detection
Iplimage * cvloadimage (const char * filename, int flags = cv_load_image_color );
The first parameter is the file name of the image to be loaded.
The second parameter specifies the color and depth of the image to be read,You can convert the input image into a channel (cv_load_image_color), a single channel (cv_load_image_grayscale), or a constant (cv_load_image_anycolor ).
Void cvkan (const cvarr * image, cvarr * edges, double t
Question about board point matching? Not considered because R and t have no effect on internal reference calibration. Set the upper left corner to the origin.
Note: it does not matter what the target is. The internal parameters obtained in the result are measured in pixels. The unit of T is the same as that of the target.
Liu Bo is indeed very powerful. After balancing, clever statistics have achieved the ideal threshold, which is quite robust to light !! Image processing is an art.
Tags: des style blog color Io OS ar Java
>_
1 # include "opencv2/imgproc. HPP "2 # include" opencv2/highgui. HPP "3 4 # include
[Opencv] 2. Edge Detection
OPENCV Glass mirror defect detection, defect information marking and extraction
Author: scutjy2015@163.com
Link: http://blog.csdn.net/scutjy2015/article/details/74011789
Part 1 Partial effect chart
Part 2 source program
#include
Part 3 other experimental pictures
Http://www.cnblogs.com/tiandsp/archive/2013/04/20/3032860.html
Three kinds of common edge detection operators.
#include "cv.h"
#include "highgui.h"
using namespace CV;
int main (int argc, char* argv[])
{
Mat src = imread ("misaka.jpg");
Mat DST;
Input image
//output image
//input Image Color channel number
//x direction order number
//y Direction order
Sobel (Src,dst,src.dept
Today's goal is to use OPENCV to achieve the detection of moving objects, here the use of three frame difference method. The code is as follows:
#include
The figure below is a binary image of the detected moving object and a rectangular frame effect graph superimposed on the actual image.
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