Object tracking using Homography – OpenCV 3.4 with python 3 Tutorial 34

  Source code: import cv2 import numpy as np img = cv2.imread("ultimo_sopravvissuto.jpg", cv2.IMREAD_GRAYSCALE) # queryiamge cap = cv2.VideoCapture(0) # Features sift = cv2.xfeatures2d.SIFT_create() kp_image, desc_image = sift.detectAndCompute(img, None) # Feature matching index_params = dict(algorithm=0, trees=5) search_params = dict() flann = cv2.FlannBasedMatcher(index_params, search_params) while True: _,…

Histogram and Back Projection – OpenCV 3.4 with python 3 Tutorial 28

import cv2 import numpy as np from matplotlib import pyplot as plt original_image = cv2.imread("goalkeeper.jpg") hsv_original = cv2.cvtColor(original_image, cv2.COLOR_BGR2HSV) roi = cv2.imread("pitch_ground.jpg") hsv_roi = cv2.cvtColor(roi, cv2.COLOR_BGR2HSV) hue, saturation, value = cv2.split(hsv_roi) # Histogram ROI roi_hist = cv2.calcHist([hsv_roi], [0, 1], None, [180, 256], [0, 180, 0,…

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