BMP图像处理VC++

#include "bmptrans.h" #include <STRING> #include <MATH.H> using namespace std; #define WIDTHBYTES(bits) (((bits)+31)/32*4) namespace bmp{ BmpTrans::BmpTrans(){} BmpTrans::BmpTrans(char* strFile){ rgbToMatrix = new RgbToMatrix(strFile); pfile = rgbToMatrix->pfile; dataOfBmp = rgbToMatrix->dataOfBmp; nPlantNum = rgbToMatrix->nPlantNum; bitHead = rgbToMatrix->bitHead; bitInfoHead = rgbToMatrix->bitInfoHead; height = rgbToMatrix->height; width = rgbToMatrix->width; l_width = rgbToMatrix->l_width; nData = rgbToMatrix->nData; pRgb = rgbToMatrix->pRgb; pColorData = rgbToMatrix->pColorData; } BmpTrans::~BmpTrans(){ delete rgbToMatrix; if (bitInfoHead.biBitCount < 24) { delete pRgb; } delete pColorData; delete []dataOfBmp; } void BmpTrans::menu(){ int x, y; for (;;) { switch (showMenu()) { case 1: cout << endl << "请输入平移量：" << endl; cout << "x = " << flush; cin >> x; cout << "y = " << flush; cin >> y; translation(x, y); break; case 2: cout << endl << "请输入平移量：" << endl; cout << "x = " << flush; cin >> x; cout << "y = " << flush; cin >> y; magnifyTranslation(x , y); break; case 3: standMirror(); break; case 4: verticalMirror(); break; case 5: spin(); break; case 6: magnifySpin(); break; case 7: zhuanzhi(); break; case 8: zoom(); break; case 0: return; default: cout << endl << "选择错误!" << endl; break; } } } int BmpTrans::showMenu(){ cout << endl; cout << " 图像变换" << endl; cout << "===================" << endl; cout << "[1] 无放大平移" << endl; cout << "[2] 放大平移" << endl; cout << "[3] 水平镜像" << endl; cout << "[4] 垂直镜像" << endl; cout << "[5] 无放大旋转" << endl; cout << "[6] 放大旋转" << endl; cout << "[7] 图像转置" << endl; cout << "[8] 图像放缩" << endl; cout << "[0] 返回" << endl; cout << "===================" << endl; cout << "请选择：" << flush; string strEnter; cin >> strEnter; if ("1" == strEnter) return 1; else if ("2" == strEnter) return 2; else if ("3" == strEnter) return 3; else if ("4" == strEnter) return 4; else if ("5" == strEnter) return 5; else if ("6" == strEnter) return 6; else if ("7" == strEnter) return 7; else if ("8" == strEnter) return 8; else if ("0" == strEnter) return 0; else return -1; } /*无放大平移*/ void BmpTrans::translation(int x, int y){ //定义一个二维的结构指针**dataOfBmp2，存放变换后的RGB数据 dataOfBmp2 = new tagRGBQUAD*[height * sizeof(tagRGBQUAD)]; dataOfBmp2[0] = new tagRGBQUAD[width*height*sizeof(tagRGBQUAD)]; for (int j = 1;j < height; j++) { dataOfBmp2[j] = dataOfBmp2[j-1] + width; } for (int i = 0; i < height; i++) { for (int j = 0; j < width; j++) { if( (i-y>=0) && (j-x>=0) && (i-y<height) && (j-x<=width)) dataOfBmp2[i][j] = dataOfBmp[i-y][j-x]; } } saveBmp(); } /*放大平移*/ void BmpTrans::magnifyTranslation(int x, int y){ height = height + abs(y); width = width + abs(x); l_width = WIDTHBYTES(width * bitInfoHead.biBitCount); nData = height * l_width; bitInfoHead.biHeight = height; bitInfoHead.biWidth = width; bitInfoHead.biSize = nData + bitHead.bfOffBits; //定义一个二维的结构指针**dataOfBmp2，存放变换后的RGB数据 dataOfBmp2 = new tagRGBQUAD*[height * sizeof(tagRGBQUAD)]; dataOfBmp2[0] = new tagRGBQUAD[width*height*sizeof(tagRGBQUAD)]; for (int j = 1;j < height; j++) { dataOfBmp2[j] = dataOfBmp2[j-1] + width; } for(int i=0;i<height;i++) { for(int j=0;j<width;j++) { if( y>=0 && x>=0 && i-y>=0 && j-x>=0 ) { dataOfBmp2[i][j] = dataOfBmp[i-y][j-x]; } if( y<0 && x>=0 && i-y<height && j-x>=0 ) { dataOfBmp2[i][j] = dataOfBmp[i][j-x]; } if( y>=0 && x<0 && i-y>=0 && j-x<width ) { dataOfBmp2[i][j] = dataOfBmp[i-y][j]; } if( y<0 && x<0 && i-y<height && j-x<width ) { dataOfBmp2[i][j] = dataOfBmp[i][j]; } } } saveBmp(); //恢复原图像的大小 height = height - abs(y); width = width - abs(x); l_width = WIDTHBYTES(width * bitInfoHead.biBitCount); nData = height * l_width; bitInfoHead.biHeight = height; bitInfoHead.biWidth = width; bitInfoHead.biSize = nData + bitHead.bfOffBits; } /*水平镜像*/ void BmpTrans::standMirror(){ //定义一个二维的结构指针**dataOfBmp2，存放变换后的RGB数据 dataOfBmp2 = new tagRGBQUAD*[height * sizeof(tagRGBQUAD)]; dataOfBmp2[0] = new tagRGBQUAD[width*height*sizeof(tagRGBQUAD)]; for (int j = 1;j < height; j++) { dataOfBmp2[j] = dataOfBmp2[j-1] + width; } for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { dataOfBmp2[y][x] = dataOfBmp[y][width - x - 1]; } } saveBmp(); } /*垂直镜像*/ void BmpTrans::verticalMirror(){ //定义一个二维的结构指针**dataOfBmp2，存放变换后的RGB数据 dataOfBmp2 = new tagRGBQUAD*[height * sizeof(tagRGBQUAD)]; dataOfBmp2[0] = new tagRGBQUAD[width*height*sizeof(tagRGBQUAD)]; for (int j = 1;j < height; j++) { dataOfBmp2[j] = dataOfBmp2[j-1] + width; } for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { dataOfBmp2[y][x] = dataOfBmp[height - y -1][width - x - 1]; } } saveBmp(); } /*无放大旋转*/ void BmpTrans::spin(){ double a; int m = (int)width / 2; int n = (int)height / 2; //计算图像中心点坐标 cout << endl << "请输入旋转角度：" << flush; cin >> a; a = (a / 180) * 3.1415926; //定义一个二维的结构指针**dataOfBmp2，存放变换后的RGB数据 dataOfBmp2 = new tagRGBQUAD*[height * sizeof(tagRGBQUAD)]; dataOfBmp2[0] = new tagRGBQUAD[width*height*sizeof(tagRGBQUAD)]; for (int j = 1;j < height; j++) { dataOfBmp2[j] = dataOfBmp2[j-1] + width; } for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { int x1 = (int)((x - m) * cos(a) + (y - n) * sin(a) + m); int y1 = (int)((x - m) * (-sin(a)) + (y - n) * cos(a) + n); if (x1 >= 0 && x1 < width && y1 >=0 && y1 <height) { dataOfBmp2[y][x] = dataOfBmp[y1][x1]; } } } saveBmp(); } /*放大旋转*/ void BmpTrans::magnifySpin(){ double a; int m = (int)width / 2; int n = (int)height / 2; //计算图像中心点坐标 cout << endl << "请输入旋转角度：" << flush; cin >> a; a = (a / 180) * 3.1415926; int height_midd = height; int width_midd = width; int x_trans = int(((width-1)-m)*cos(a)+((height-1)-n)*sin(a)) - m; int y_trans = int(((height-1)-n)*cos(a)-(0-m)*sin(a)) - n; width = width + 2 * abs(x_trans); height = height + 2 * abs(y_trans); m = (int)width / 2; n = (int)height / 2; //计算位图的实际宽度并确保它为32的倍数 l_width = WIDTHBYTES(width* bitInfoHead.biBitCount); nData = height*l_width; bitInfoHead.biHeight = height; bitInfoHead.biWidth = width; bitHead.bfSize =nData + bitHead.bfOffBits; //定义一个二维的结构指针**dataOfBmp2，存放变换后的RGB数据 dataOfBmp2 = new tagRGBQUAD*[height * sizeof(tagRGBQUAD)]; dataOfBmp2[0] = new tagRGBQUAD[width*height*sizeof(tagRGBQUAD)]; for (int j = 1;j < height; j++) { dataOfBmp2[j] = dataOfBmp2[j-1] + width; } tagRGBQUAD** dataOfBmp3 = new tagRGBQUAD*[height * sizeof(tagRGBQUAD)]; dataOfBmp3[0] = new tagRGBQUAD[width*height*sizeof(tagRGBQUAD)]; for (j = 1;j < height; j++) { dataOfBmp3[j] = dataOfBmp3[j-1] + width; } for (int i = 0; i < height - 2 * y_trans; i++) { for (int j = 0; j < width - 2 * x_trans; j++) { dataOfBmp3[i + y_trans][j + x_trans] = dataOfBmp[i][j]; } } for (i = 0; i < height