盛 Week05

 ##open cv

1.桌面安裝空白opencv

2.第三步,Add OpenCV to system PATH

3.目錄不要改 用預設

4.檔案總管檢查C:\多了Opencv目錄裡面include lib bin

5.關閉Opencv 才會認識Opencv

接下來做codeblock設定

1.Setting-Compiler 目錄compiler

2.Setting-Compiler 目錄linker要加入lib目錄

3.Setting-Compiler linker setting 要加入cv210 cxcore210 highgui210三個檔名

要寫空白Opencv的城市 只要在codeblock新增空白檔案就好了 

把一張圖放在C槽 用以下程式碼可以叫出照片

程式碼:

#include <opencv/highgui.h>

int main()

{

    IplImage*img=cvLoadImage("c:/micky.png");

    cvShowImage("img",img);

    cvWaitKey(0);

}

##課本範例

 連上網站 下載 data win32

下載window \Textrue.exe

data.zip

跑範例 觀察

、、、cpp

glBegin(...)

    glTexCoord2f(tx ty) ; glVertex2f(x,y);

    glTexCoord2f(tx2 ty2) ; glVertex2f(x2,y2);

    glTexCoord2f(tx3 ty3) ; glVertex2f(x3,y3);

    glTexCoord2f(tx4 ty4) ; glVertex2f(x4,y4);

dlEnd();

、、、

##week05-1_texture_opencv_cvLoadImage

#include <GL/glut.h>///使用GLUT外掛

#include <opencv/highgui.h>

 void display()

 {

     glutSolidTeapot(0.3);

     glutSwapBuffers();

 }

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

{

    IplImage*img=cvLoadImage("c:/micky.png");

    cvShowImage("opnecv",img);

    glutInit(&argc, argv);///初始化 GLUT 140

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///143

    glutCreateWindow("GLUT Shapes");///145

    glutDisplayFunc(display);///148 display函式

    glutMainLoop();

}

##week05-1_texture_teapot_earth

#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>

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///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);

    return id;

}

void display()

 {

     glutSolidTeapot(0.3);

     glutSwapBuffers();

 }

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

{

    glutInit(&argc, argv);///初始化 GLUT 140

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///143

    glutCreateWindow("week09_texture");///145

    glutDisplayFunc(display);///148 display函式

    myTexture("c:/earth.jpg");

    glutMainLoop();

}

##week05-1_texture_polygon

#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>

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///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);

    return id;

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glBegin(GL_POLYGON);

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

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

        glTexCoord2f(1,1) ; glVertex2f(1,1);

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

    glEnd();

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

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

{

    glutInit(&argc, argv);///初始化 GLUT 140

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///143

    glutCreateWindow("week09_texture");///145

    glutDisplayFunc(display);///148 display函式

    myTexture("c:/earth.jpg");

    glutMainLoop();

}

##week05-1_texture_earth_rotating

#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>

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///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);

    return id;

}

float angle=0;

GLUquadric*quad=NULL;

void display()

 {

     glEnable(GL_DEPTH_TEST);

     glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

     glPushMatrix();

        glRotatef(90,1,0,0);

        glRotatef(angle++,0,0,1);

        gluSphere(quad,1,30,30);

     glPopMatrix();

     glutSwapBuffers();

 }

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

{

    glutInit(&argc, argv);///初始化 GLUT 140

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///143

    glutCreateWindow("week09_texture");///145

    glutIdleFunc(display);

    glutDisplayFunc(display);///148 display函式

    quad=gluNewQuadric();

    myTexture("c:/earth.jpg");

    gluQuadricTexture(quad,1);

    glutMainLoop();

}