rotateImage(src, dst, degree); cout << "angle:" << degree << endl; imshow("旋转调整后", dst); Mat resulyImage = dst(Rect(0, 0, dst.cols, 500)); //根据先验知识,估计好文本的长宽,再裁剪下来 imshow("裁剪之后", resulyImage); imwrite("recified.jpg", resulyImage); } int main(...
cv.imshow("img_rotate_30", image_rotate(img,30)) cv.imshow("img_rotate_45", image_rotate(img,45)) cv.waitKey(0) cv.destroyAllWindows() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 4.2 旋转效果 5. 逆时针为正数,顺时针为负数 5.1 旋转实...
points.push_back(cv::Point(srcImage.cols, 0)); points.push_back(cv::Point(srcImage.cols, srcImage.rows)); points.push_back(cv::Point(0, srcImage.rows)); cv::Mat outputImage; rotateImage(srcImage, outputImage, points, cv::Point(40, 70), 0.4); cv::imshow("原图", srcImage); ...
我们在opencv中找到两个函数支持旋转,**其中一个是Rotate,另一个是WarpAffine**。 Rotate函数原型: ``` //函数原型,可以看出它只支持90、180、270这样的特殊角度旋转 CV_EXPORTS_W void rotate(InputArray src, OutputArray dst, int rotateCode); //下面为源码解释 /** @brief Fills the output array with ...
cv::warpAffine(image, dest, r, cv::Size(len, len));break;//image size will change} } opencv3: voidcv::rotate(InputArray src, OutputArray dst,introtateCode ) Rotates a 2D array in multiples of 90 degrees. The function rotate rotates the array in one of three different ways: Rotate ...
defrotate_bound(image, angle):# grab the dimensions of the image and then determine the# center(h, w) = image.shape[:2] (cX, cY) = (w //2, h //2)# grab the rotation matrix (applying the negative of the# angle to rotate clockwise), then grab the sine and cosine# (i.e.,...
void Rotate(const cv::Mat &srcImage, cv::Mat &dstImage, double angle, cv::Point2f center, double scale) { cv::Mat M = cv::getRotationMatrix2D(center, angle, scale);//计算旋转的仿射变换矩阵 cv::warpAffine(srcImage, dstImage, M, cv::Size(srcImage.cols, srcImage.rows));//仿射变...
rotate函数参数说明 实例代码 imutils环境安装 逆时针旋转33度 图像翻转 图像上下翻转 图像左右翻转 图像上下左右翻转 总结 前言 计算机视觉市场巨大而且持续增长,且这方面没有标准API,如今的计算机视觉软件大概有以下三种: 1、研究代码(慢,不稳定,独立并与其他库不兼容) ...
0, 0);return img_rotate;}int main(int argc, char *argv[]){int degree;Mat m_SrcImg;m_SrcImg = imread("C:\\Users\\lidabao\\Desktop\\Lena1.bmp");namedWindow("原图像", 1);imshow("原图像", m_SrcImg);cout << "请输入旋转的度数：";cin >> degree;Mat m_ResImg = rotateImage...
imageangle=minAreaRect[-1]ifangle < -45:angle=90 + anglereturn-1.0 * angle 获得偏斜角后,我们只需要重新旋转图像即可: # Rotate the image around its centerdefrotateImage(cvImage, angle: float):newImage=cvImage.copy()(h,w) = newImage.shape[:2]cen...