参数解析:(图像矩阵,直线起始坐标, 直线终止坐标、颜色、线条厚度)
import cv2 import numpy as np img = cv2.imread(r"./images/1.jpg") cv2.line(img,(100,30),(210,180),color=(0,0,255),thickness=2) cv2.imshow("pic show",img) cv2.waitKey(0)
参数 (图像,圆心,半径,颜色,线条厚度)
import cv2 import numpy as np img = cv2.imread(r"./images/1.jpg") # cv2.line(img,(100,30),(210,180),color=(0,0,255),thickness=2) cv2.circle(img,center=(50,50),radius=30,color=(0,0,255),thickness=2) cv2.imshow("pic show",img) cv2.waitKey(0)
参数(图像,左上角坐标,右下角坐标,颜色,线条厚度)
import cv2 import numpy as np img = cv2.imread(r"./images/1.jpg") # cv2.line(img,(100,30),(210,180),color=(0,0,255),thickness=2) # cv2.circle(img,center=(50,50),radius=30,color=(0,0,255),thickness=2) cv2.rectangle(img,(100,30),(210,180),color=(0,0,255),thickness=2) cv2.imshow("pic show",img) cv2.waitKey(0)
import cv2 import numpy as np img = cv2.imread(r"./images/1.jpg") # cv2.line(img,(100,30),(210,180),color=(0,0,255),thickness=2) # cv2.circle(img,center=(50,50),radius=30,color=(0,0,255),thickness=2) # cv2.rectangle(img,(100,30),(210,180),color=(0,0,255),thickness=2) cv2.ellipse(img,center=(100,100),axes=(100,50),angle=0,startAngle=0,endAngle=360,color=(255,0,0),thickness=2) cv2.imshow("pic show",img) cv2.waitKey(0)
多边形,isClosed 代表是否是封闭
import cv2 import numpy as np img = cv2.imread(r"./images/1.jpg") # cv2.line(img,(100,30),(210,180),color=(0,0,255),thickness=2) # cv2.circle(img,center=(50,50),radius=30,color=(0,0,255),thickness=2) # cv2.rectangle(img,(100,30),(210,180),color=(0,0,255),thickness=2) # cv2.ellipse(img,center=(100,100),axes=(100,50),angle=0,startAngle=0,endAngle=360,color=(255,0,0),thickness=2) pts = np.array([[10,5],[50,10],[70,20],[20,30]],dtype=np.int32) pts = pts.reshape((-1,1,2)) cv2.polylines(img,[pts],isClosed=True,color=(0,0,255),thickness=2) cv2.imshow("pic show",img) cv2.waitKey(0)
import cv2 import numpy as np img = cv2.imread(r"./images/1.jpg") # cv2.line(img,(100,30),(210,180),color=(0,0,255),thickness=2) # cv2.circle(img,center=(50,50),radius=30,color=(0,0,255),thickness=2) # cv2.rectangle(img,(100,30),(210,180),color=(0,0,255),thickness=2) # cv2.ellipse(img,center=(100,100),axes=(100,50),angle=0,startAngle=0,endAngle=360,color=(255,0,0),thickness=2) # pts = np.array([[10,5],[50,10],[70,20],[20,30]],dtype=np.int32) # pts = pts.reshape((-1,1,2)) # cv2.polylines(img,[pts],isClosed=True,color=(0,0,255),thickness=2) cv2.putText(img,"gril",(10,30),cv2.FONT_HERSHEY_SIMPLEX,fontScale=1,color=(0,0,255),thickness=1,lineType=cv2.LINE_AA) cv2.imshow("pic show",img) cv2.waitKey(0)
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