Created
December 20, 2016 05:18
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Template matching using OpenCV python. This code gets a real time frame from webcam & matches with faces in 'images' folder. After the lookup, it rectangles the webcam face & says with which face the webcam face matches
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| import cv2 | |
| from matplotlib import pyplot as plt | |
| import numpy as np | |
| cap = cv2.VideoCapture(0) #Webcam Capture | |
| while(True): | |
| ret, frame = cap.read() | |
| gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY) | |
| for i in range(3): | |
| template = cv2.imread('images/face'+str(i)+'.jpg',0) | |
| w, h = template.shape[::-1] | |
| res = cv2.matchTemplate(gray,template,cv2.TM_SQDIFF) | |
| min_val, max_val, min_loc, max_loc = cv2.minMaxLoc(res) | |
| top_left = min_loc | |
| bottom_right = (top_left[0] + w, top_left[1] + h) | |
| cv2.rectangle(frame,top_left, bottom_right, 255, 1) | |
| cv2.putText(frame, 'Detected Face ID: '+str(i), (top_left[0],top_left[1]-10), | |
| cv2.FONT_HERSHEY_PLAIN, 1.0, (255,255,255)) | |
| cv2.imshow('Test',frame) | |
| if cv2.waitKey(1) & 0xFF == ord('q'): | |
| break | |
| cap.release() | |
| cv2.destroyAllWindows() |
where can i put image
didnt work for me ...no detection.How many images to use for detection?
template = cv2.imread('images/face'+str(i)+'.jpg',0)
how is the images named face1,.jpg...face2.jpg....face3.jpg etc?
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can u tell me where should i place the images folder.?