工信部网站备案网址,wordpress文字占满,泰安房产中介公司,邯郸市网络建站绘制图形和文字
demo1
# 绘制线段
import cv2
import numpy as np
# 创建一个300300 3通道的图像
canvas np.ones((300, 300, 3), np.uint8)*255
# 绘制一条直线起点坐标为(50, 50)终点坐标为(250,50),颜色的BGR值为(255, 0, 0)(蓝色)#xff0c;粗细为5
canvas cv2.line(…绘制图形和文字
demo1
# 绘制线段
import cv2
import numpy as np
# 创建一个300×300 3通道的图像
canvas np.ones((300, 300, 3), np.uint8)*255
# 绘制一条直线起点坐标为(50, 50)终点坐标为(250,50),颜色的BGR值为(255, 0, 0)(蓝色)粗细为5
canvas cv2.line(canvas, (50, 50), (250, 50), (255, 0, 0), 5)# 绘制一条直线起点坐标为(50, 150)终点坐标为(250,150),颜色的BGR值为(0, 255, 0)(绿色)粗细为10
canvas cv2.line(canvas, (50, 150), (250, 150), (0, 255, 0), 10)# 绘制一条直线起点坐标为(50, 250)终点坐标为(250,250),颜色的BGR值为(0, 0, 255)(红色)粗细为15
canvas cv2.line(canvas, (50, 250), (250, 250), (0, 0, 255), 15)# 绘制一条直线起点坐标为(150, 50)终点坐标为(150,250),颜色的BGR值为(0, 255, 255)(黄色)粗细为20
canvas cv2.line(canvas, (150, 50), (150, 250), (0, 255, 255), 5)cv2.imshow(Lines, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo2
# 绘制矩形
import cv2
import numpy as npcanvas np.zeros((300, 300, 3), np.uint8)# 在图像上绘制一个左上角坐标为(50, 50)、右下角坐标为(200, 150)、青色的、线条宽度为20的举行边框最后一个参数为-1时绘制出一个实心举行
canvas cv2.rectangle(canvas, (50, 50), (200, 150), (255, 255, 0), 5)
cv2.imshow(img, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo3
# 绘制正方形
import numpy as np
import cv2
canvas np.zeros((300, 300, 3), np.uint8)
canvas cv2.rectangle(canvas, (50, 50), (250, 250), (0, 0, 255), 40)
canvas cv2.rectangle(canvas, (90, 90), (210, 210), (0, 255, 0), 30)
canvas cv2.rectangle(canvas, (120, 120), (180, 180), (255, 0, 0), 20)
canvas cv2.rectangle(canvas, (140, 140), (160, 160), (0, 255, 255), -1)
cv2.imshow(img, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo4
# 绘制交通灯
import numpy as np
import cv2canvas np.zeros((100, 300, 3), np.uint8)
canvas cv2.circle(canvas, (50, 50), 40, (0, 0, 255), -1)
canvas cv2.circle(canvas, (150, 50), 40, (0, 255, 255), -1)
canvas cv2.circle(canvas, (250, 50), 40, (0, 255, 0), -1)cv2.imshow(circle, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo5
# 绘制同心圆import numpy as np
import cv2canvas np.zeros((300, 300, 3), np.uint8)
# 圆心的横坐标等于画布宽度的一半center_X是圆心的横坐标
center_X int(canvas.shape[1]/2)
center_Y int(canvas.shape[0]/2)for r in range(0, 150, 30):cv2.circle(canvas, (center_X, center_Y), r, (0, 255, 0), 5)
cv2.imshow(Circles, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo6
# 绘制27个随机的圆import numpy as np
import cv2canvas np.zeros((300, 300, 3), np.uint8)
for numbers in range(0, 28):# 获得随机的圆心横坐标这个坐标在(0, 299)内取值center_X np.random.randint(0, high300)# 获得随机的圆心纵坐标这个坐标在(0, 299)内取值center_Y np.random.randint(0, high300)# 获得最忌的半径这个半径在(11, 70)内取值radius np.random.randint(11,high71)# 获得随机的线条颜色这个颜色在(0, 255)取值color np.random.randint(0, high256, size(3,)).tolist()# 绘制一个圆心坐标为(center_X, center_Y)圆cv2.circle(canvas, (center_X, center_Y), radius, color, -1)cv2.imshow(Circles, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo7
# 绘制等腰梯形
import numpy as np
import cv2
canvas np.zeros((300, 300, 3), np.uint8)pts np.array([[100, 50], [200, 50], [50, 250], [250, 250]], np.int32)canvas cv2.polylines(canvas, [pts], True, (0, 0, 255), 5)cv2.imshow(img, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo8
# 绘制文字
import numpy as np
import cv2
canvas np.zeros((100, 300, 3), np.uint8)
fontStyle cv2.FONT_HERSHEY_DUPLEX cv2.FONT_ITALIC
cv2.putText(canvas, mrsoft, (20, 70), fontStyle, 2, (0, 255, 0), 5)
cv2.imshow(img, canvas)
cv2.waitKey()
cv2.destroyAllWindows()demo9
import cv2
import time
import numpy as np
# 画面的宽和高
width, height 200, 200
# 圆半径
r 20
# 圆心横坐标起始坐标
x r 20
# 圆心纵坐标起始坐标
y r 100
# 每一帧的移动速度
x_offer y_offer 4while cv2.waitKey(-1) -1:if x width - r or x r:x_offer * -1if y height-r or y r:y_offer * -1x x_offery y_offerimg np.ones((width, height, 3), np.uint8)*255cv2.circle(img, (x, y), r, (255, 0, 0), -1)cv2.imshow(img, img)time.sleep(1/60)
cv2.destroyAllWindows()
