实验4 图像几何变换—哈哈镜制作(9)

vc++实现图像放大、缩小、平移、旋转、各种哈哈镜变形

// S形变形 case SSHAPE:

pImg1 = cvCreateImage(cvGetSize(pImg),pImg->depth,pImg->nChannels); for(i=0;i<pImg->height;i++) {

tmp = RANGE*sin(2*i*PI/pImg1->height+PI)+RANGE; for(j=tmp;j<pImg->width-(2*RANGE-tmp);j++) {

int s=(int)((j-tmp)*(pImg->width)/(pImg->width-RANGE*2)); for(int k=0;k<pImg->nChannels;k++) {

pImg1->imageData[i*pImg1->widthStep+j*pImg1->nChannels+k]=pImg->imageData[i*pImg->widthStep+s*pImg->nChannels+k];

} break;

}

}

//波浪形

case UNDAFORM:

pImg1 = cvCreateImage(cvGetSize(pImg),pImg->depth,pImg->nChannels); for(i=0;i<pImg->height;i++) {

for(j=0;j<pImg->width;j++) {

int s=(int)((4*i+pImg->height+pImg->height*sin(j*2*PI/pImg->width))/6); for(int k=0;k<pImg->nChannels;k++) {

pImg1->imageData[s*pImg1->widthStep+j*pImg1->nChannels+k]=pImg->imageData[i*pImg->widthStep+j*pImg->nChannels+k];

//图片旋转 case ROTATE:

width_rotate=int(pImg->height*fabs(sin (-angle * CV_PI / 180.))+pImg->width*fabs(cos height_rotate=int(pImg->width*fabs(sin (-angle * CV_PI / 180.))+pImg->height*fabs(cos pImg1 = cvCreateImage(cvSize(width_rotate,height_rotate),pImg->depth,pImg->nChannels);

} break;

}

}

(-angle * CV_PI / 180.))); (-angle * CV_PI / 180.)));