WebAug 3, 2024 · First thing, painted colors change with light. If you illuminate with a red light, white paint will be seen red. You can detect colors seen by the camera, not the paint color. You can distinguish those two whites using your code with inRange, if you control illumination, so the same color looks always the same way. WebSep 4, 2024 · cv2.inRange 函数很简单，参数有三个 第一个参数：hsv指的是原图 第二个参数：lower_red指的是图像中低于这个lower_red的值，图像值变为0 第三个参 …
Color detection - Python - OpenCV
Web# Convert BGR to HSV hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV) # define range of blue color in HSV lower_blue = np.array([110,50,50]) upper_blue = np.array([130,255,255]) # Threshold the HSV image to get only blue colors mask = cv2.inRange(hsv, lower_blue, upper_blue) # Bitwise-AND mask and original image … WebJan 5, 2024 · How can I define "lower" and "upper" range of two different color, such as red and blue (because red and blue are not next to each other in the HSV color) This … the road not taken imagery
三分钟带你快速学习RGB、HSV和HSL颜色空间 - 知乎
http://duoduokou.com/python/26378304631793491082.html Webimport cv2 as cv import numpy as np cap = cv.VideoCapture(0) while(1): # Take each frame _, frame = cap.read() # Convert BGR to HSV hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV) # define range of blue color in HSV lower_blue = np.array([110,50,50]) upper_blue = np.array([130,255,255]) # Threshold the HSV image … WebApr 6, 2024 · import cv2 import numpy as np # 读入输入图像 img = cv2.imread("image.jpg") # 将 BGR 转换为 HSV hsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV) # 在 HSV 中定义蓝色的范围 lower_blue = np.array([110,50,50]) upper_blue = np.array([130,255,255]) # 阈值 HSV 图像以获得仅蓝色 mask = cv2.inRange(hsv, lower_blue, upper_blue) # 按位 … the road not taken genius