Question

最近我一直在使用python 3和opencv以及我的笔记本电脑摄像头进行面部追踪，我已经做好了，当你运行.pyw脚本时，会弹出一个窗口并显示网络摄像头，我疯狂的一个python脚本，用haarcascades检测冻结图像上的脸，但我似乎无法将两者结合起来，所以这是网络摄像头程序;

 import cv2

cv2.namedWindow("preview")
vc = cv2.VideoCapture(0)

if vc.isOpened(): # try to get the first frame
    rval, frame = vc.read()
else:
    rval = False

while rval:
    cv2.imshow("preview", frame)
    rval, frame = vc.read()
    key = cv2.waitKey(20)
    if key == 27: # exit on ESC
        vc.release()
cv2.destroyWindow("preview")

这是面部检测脚本，我在一个带有haar xml文件和jpg的文件夹中，我创建了一个脚本的桌面快捷方式，通过双击图片和正面xml运行它捷径。

import cv2
import sys
import time

imagePath = sys.argv[1]
cascPath = sys.argv[2]

faceCascade = cv2.CascadeClassifier(cascPath)

image = cv2.imread(imagePath)
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

faces =    faceCascade.detectMultiScale(gray,scaleFactor=1.2,minNeighbors=5,minSize=(30, 30))#,flags = cv2.cv.CV_HAAR_IMAGE_SCALE)

print("Found {0} faces!".format(len(faces)))


for (x, y, w, h) in faces:
cv2.rectangle(image, (x, y), (x+w, y+h), (0, 255, 0), 2)


cv2.imshow("Faces found" ,image)
cv2.waitKey(0)&0xFF

请记住我需要做的就是使用第一段代码制作一个实时面部跟踪器，同时注意我是初学者，所以请解释 - 谢谢！

哦，是的，结合起来他们看起来像;

import cv2
import sys
import time

cv2.namedWindow("preview")
vc = cv2.VideoCapture(0)

imagePath = sys.argv[1]
cascPath = sys.argv[2]

faceCascade = cv2.CascadeClassifier(cascPath)

image = cv2.imread(imagePath)
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

faces =     faceCascade.detectMultiScale(gray,scaleFactor=1.2,minNeighbors=5,minSize=(30, 30))#,flags = cv2.cv.CV_HAAR_IMAGE_SCALE)

for (x, y, w, h) in faces:
    cv2.rectangle(image, (x, y), (x+w, y+h), (0, 255, 0), 2)

if vc.isOpened(): # try to get the first frame
    rval, frame = vc.read()
else:
    rval = False

while rval:
    cv2.imshow("preview", frame)
    rval, frame = vc.read()
    key = cv2.waitKey(20)
    if key == 27: # exit on ESC
        vc.release()
cv2.destroyWindow("preview")

我的错误如下，

追踪（最近一次通话）：文件“C：\ Users \ tcwissemann \ Desktop \ WebDetect.pyw”，第8行，in imagePath = sys.argv [1] IndexError：列表索引超出范围

如何制作特定类型的python人脸跟踪器

0 个答案: