实现图片中划线并保存

import cv2def draw_test(event,x,y,flag,param):global drawing# cv2.EVENT_LBUTTONDOWN  鼠键左键按下事件if event == cv2.EVENT_LBUTTONDOWN:drawing = True# cv2.EVENT_MOUSEMOVE  鼠键左键移动事件elif event == cv2.EVENT_MOUSEMOVE:if drawing:cv2.circle(img,(x,y),15,(255,0,0),-1)#cv2.EVENT_LBUTTONUP  鼠键左键释放事件elif event == cv2.EVENT_LBUTTONUP:drawing = Falsecv2.circle(img, (x, y), 15, (255, 0, 0), -1)img= cv2.imread('images/car.png')
cv2.namedWindow('image')cv2.setMouseCallback('image', draw_test)
# 真正的标志，表示是否正在绘制
drawing = False
while(True):cv2.imshow('image', img)if cv2.waitKey(20) == 115:rs = cv2.imwrite("save_image/car1.png", img)if cv2.waitKey(20) == 27:  # 按ESC退出break
cv2.destroyAllWindows()

实现摄像头捕捉和文本显示且鼠标点击文本中的数字加一

import cv2
from PIL import Image, ImageDraw, ImageFont
import numpy as npdef put_text(image, text, position, font_path, font_size, color):pil_image = Image.fromarray(cv2.cvtColor(image, cv2.COLOR_BGR2RGB))draw = ImageDraw.Draw(pil_image)font = ImageFont.truetype(font_path, font_size)draw.text(position, text, fill=color, font=font)image_with_text = cv2.cvtColor(np.array(pil_image), cv2.COLOR_RGB2BGR)return image_with_textcap = cv2.VideoCapture(0)
cv2.namedWindow("name", cv2.WINDOW_NORMAL)
cv2.resizeWindow("name", 500, 300)rocket_count = 0def draw_test(event, x, y, flags, param):global rocket_countif event == cv2.EVENT_LBUTTONDOWN:rocket_count += 1cv2.setMouseCallback("name", draw_test)while True:ret, frame = cap.read()if ret:text = f"老铁们，火箭刷起来，你已刷个{rocket_count}火箭"position = (0, 50)font_path = "simhei.ttf"font_size = 25color = (255, 0, 0)frame = put_text(frame, text, position, font_path, font_size, color)cv2.imshow("name", frame)if cv2.waitKey(20) == 27:breakcap.release()
cv2.destroyAllWindows()