Python 使用HOG获取图像描述符，但HOG.compute始终返回0.0
尝试使用OpenCV在Python中做一些简单的事情。使用HOG得到特征向量。但我得到的都是0.0。我试过几张照片，结果都是一样的Python 使用HOG获取图像描述符，但HOG.compute始终返回0.0,python,opencv,Python,Opencv,尝试使用OpenCV在Python中做一些简单的事情。使用HOG得到特征向量。但我得到的都是0.0。我试过几张照片，结果都是一样的 import cv2 image = cv2.imread("D:\\skhan\\research\\data\\face\\test.jpg",cv2.IMREAD_COLOR) image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) winSize = (64,64) blockSize = (16,16) blockS
import cv2
image = cv2.imread("D:\\skhan\\research\\data\\face\\test.jpg",cv2.IMREAD_COLOR)
image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
winSize = (64,64)
blockSize = (16,16)
blockStride = (8,8)
cellSize = (8,8)
nbins = 9
derivAperture = 1
winSigma = 4.0
histogramNormType = 0
L2HysThreshold = 2.0000000000000001e-01
gammaCorrection = 0
nlevels = 64
hog = cv2.HOGDescriptor(winSize,blockSize,blockStride,cellSize,nbins,derivAperture,winSigma,histogramNormType,L2HysThreshold,gammaCorrection,nlevels)
winStride = (8,8)
padding = (8,8)
locations = ((10,20),)
hist = hog.compute(image,winStride,padding,locations)
只需使用
hist=hog.compute（image）winsridewinsizewinsridewinsize