openCV

小葉老師今天教我們用openCV

到小葉老師的網站下載windows跟data，解壓縮後把data放到windows檔案裡面

codeblocks裡面的setting點進compiler裡進行設定

Search directories裡加入

compiler: C:\OpenCV2.1\include

Linker: C:\OpenCV2.1\lib

在linker settings裡加入

cv210

cxcore210

highgui210

將glut打開，照片存在glut裡的lib檔案

程式碼:

#include <openCV/highgui.h>

int main()

{

    IplImage * img = cvLoadImage("wink.jpg");

    cvShowImage("photo", img);

    cvWaitKey(0);

}

cvWaitKey(0);讓程式可以跑很久

把圖放到茶壺上面

程式碼:

#include <opencv/highgui.h>

 ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可

#include <opencv/cv.h>

#include <GL/glut.h>

void init()

{

    IplImage * img = cvLoadImage("wink.jpg"); 

///OpenCV讀圖

    cvCvtColor(img,img, CV_BGR2RGB);

 ///OpenCV轉色彩 (需要cv.h)

    glEnable(GL_TEXTURE_2D); 

///1. 開啟貼圖功能

    GLuint id;

 ///準備一個 unsigned int 整數, 叫 貼圖ID

    glGenTextures(1, &id);

 /// 產生Generate 貼圖ID

    glBindTexture(GL_TEXTURE_2D, id);

 ///綁定bind 貼圖ID

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 

/// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 

/// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

 /// 貼圖參數, 放大時的內插, 用最近點

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 

/// 貼圖參數, 縮小時的內插, 用最近點

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

}  

 ///最後一行最難/最重要, 所貼圖影像的資料都設定好

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("08160661");

    glutDisplayFunc(display);

    init();

    glutMainLoop();

}

最終程式碼:

#include <opencv/highgui.h> 

#include <opencv/cv.h>

#include <GL/glut.h>

void init()

{

    IplImage * img = cvLoadImage("wink.jpg");

    cvCvtColor(img,img, CV_BGR2RGB);

    glEnable(GL_TEXTURE_2D);

    GLuint id;

    glGenTextures(1, &id);

    glBindTexture(GL_TEXTURE_2D, id);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glBegin(GL_POLYGON);

        glTexCoord2f(0,1); glVertex2f(-1,-1);

        glTexCoord2f(1,1); glVertex2f(+1,-1);

        glTexCoord2f(1,0); glVertex2f(+1,+1);

        glTexCoord2f(0,0); glVertex2f(-1,+1);

    glEnd();

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("08160661");

    glutDisplayFunc(display);

    init();

    glutMainLoop();

}