摘要:
画线: import numpy as np import cv2 as cv cap = cv.VideoCapture(0) while True: ret, frame = cap.read() # 参数ret 为True 或者False,代表有没有读取到图片 # 参数frame 表示截取到一 阅读全文
摘要:
读取摄像头: import numpy as np import cv2 as cv cap = cv.VideoCapture(0) while True: ret, frame = cap.read() # 参数ret 为True 或者False,代表有没有读取到图片 # 参数frame 表示截 阅读全文
摘要:
matplotlib显示图像: import numpy as np import cv2 as cv # 导入矩阵库和opencv库 from matplotlib import pyplot as plt # Matplotlib是Python的一个绘图库,是Python中最常用的可视化工具之一 阅读全文
摘要:
按键关闭窗口: import numpy as np import cv2 as cv # 导入矩阵库和opencv库 image_path = r'C:\Users\dingshuai\Desktop\py\Read_image\20200925210632.png' img = cv.imrea 阅读全文
摘要:
保存图像: import numpy as np import cv2 as cv # 导入矩阵库和opencv库 image_path = r'C:\Users\dingshuai\Desktop\py\Read_image\20200925210632.png' img = cv.imread( 阅读全文
摘要:
直接显示: import numpy as np import cv2 as cv # 导入矩阵库和opencv库 img = cv.imread(r'C:\Users\dingshuai\Desktop\py\Read_image\20200925210632.png', cv.IMREAD_GR 阅读全文