国外的一个做人脸直线化的代码，能够对人脸和汽车图片进行直线化。-Many recognition algorithms depend on careful positioning of an object into a canonical pose, so the position of features relative to a fixed coordinate system can be examined. Generally, this positioning is done eithe

国外的一个进行图像图形直线化的代码，能够对人脸和汽车图片进行直线化处理。-Many recognition algorithms depend on careful positioning of an object into a canonical pose, so the position of features relative to a fixed coordinate system can be examined. Generally, this positioning is done

利用OpenCV的库，实现基于SIFT的特征检测和匹配，匹配好两个图像的同一物体，并在第二张图像上框出来第一个图像中的物体-Using OpenCV library that implements the SIFT-based feature detection and matching, matching two images of the same object is good, and in the second picture on the box out of the first ob

HOG即histogram of oriented gradient, 是用于目标检测的特征描述子，该技术将图像局部出现的方向梯度次数进行计数，该方法和边缘方向直方图、scale-invariant feature transform类似，不同的是hog的计算基于一致空间的密度矩阵来提高准确率。Navneet Dalal and Bill Triggs首先在05年的CVPR中提出HOG，用于静态图像or视频的行人检测。-HOG i.e. histogram of oriented gradien