Lm's圖學筆記week07

下載moolde裡的OPENCV

打開Codeblocks-setting-compiler

找圖儲存在freeglut-bin

Search directories新增:

•  Compiler:  C:\OpenCV2.1\include
•  Linker: C:\OpenCV2.1\lib

Linker settings新增:

•  cv210  ,cxcore210  ,highgui210

#include <opencv/highgui.h> int main(int argc,char** argv) {    ///小心大小寫 IplImage* img = cvLoadImage("圖檔.jpg"); cvShowImage("圖檔 photo",img); cvWaitKey(0);///等待任意鍵,才會繼續 }

#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("1.jpg");

 ///讀圖/記得改圖片名

    cvCvtColor(img,img, CV_BGR2RGB);

    glEnable(GL_TEXTURE_2D);

//開啟貼圖功能

    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);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week07 texture");

    glutDisplayFunc(display);

    init();///設好後，才設定貼圖到opengl上

    glutMainLoop();

}

#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>
GLUquadric * quad;///TODO: Quad
void init()///copy 自 http://hackmd.io/@jsyeh/opengl
{
    IplImage * img = cvLoadImage("earth.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);
    quad = gluNewQuadric();///TODO: Quad
}   ///最後一行最難/最重要, 所貼圖影像的資料都設定好
float angle=0;///TODO:
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();///自動轉很帥///TODO:
        glRotatef(90, 1,0,0);///TODO:
        glRotatef(angle, 0,0,1);///自動轉很帥///TODO:
        gluQuadricTexture(quad, 1);///TODO:
        gluSphere(quad, 0.5, 30, 30);///glutSolidTeapot(0.3);///TODO:
    glPopMatrix();///自動轉很帥///TODO:
    ///glutSolidTeapot(0.3);
    glutSwapBuffers();
    angle++;///TODO:
}
int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("week07 texture");
    glutDisplayFunc(display);
    glutIdleFunc(display);///TODO:
    glEnable(GL_DEPTH_TEST);///TODO: 有3D的深度測試(前面會蓋掉後面)
    init();///上面把OpenGL都設好後, 才設定 OpenCV 的貼圖到 OpenGL上面
    glutMainLoop();
}