import pygame import sys pygame.init() SCREEN_WIDTH = 640 SCREEN_HEIGHT = 480 screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) pygame.display.set_caption("Resize Image") image = pygame.image.load("miaojv.jpg") image_rect = image.get_rect() scale = 1.0 min_scale = 0.5 max_scale = 10.0 last_click_time = 0 while True: for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() sys.exit() elif event.type == pygame.MOUSEBUTTONDOWN: if event.button == 1: # left click if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1: # single click if pygame.time.get_ticks() - last_click_time < 300: # double click scale -= 1 if scale < min_scale: scale = min_scale else: # single click scale += 1 if scale > max_scale: scale = max_scale last_click_time = pygame.time.get_ticks() last_click_pos = event.pos screen.fill((255, 255, 255)) scaled_image = pygame.transform.scale(image, (int(image_rect.width * scale), int(image_rect.height * scale))) screen.blit(scaled_image, (SCREEN_WIDTH // 2 - scaled_image.get_width() // 2, SCREEN_HEIGHT // 2 - scaled_image.get_height() // 2)) pygame.display.flip() 改为直接从摄像头读取图片

好的，你可以将代码改为从摄像头读取图片并进行缩放显示。下面是修改后的代码： ```python import cv2 import pygame import numpy as np pygame.init() SCREEN_WIDTH = 640 SCREEN_HEIGHT = 480 screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) pygame.display.set_caption("Resize Image") cap = cv2.VideoCapture(0) scale = 1.0 min_scale = 0.5 max_scale = 10.0 last_click_time = 0 while True: ret, frame = cap.read() if not ret: continue # 转换图像格式 frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB) for event in pygame.event.get(): if event.type == pygame.QUIT: cap.release() cv2.destroyAllWindows() pygame.quit() exit() elif event.type == pygame.MOUSEBUTTONDOWN: if event.button == 1: # left click if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1: # single click if pygame.time.get_ticks() - last_click_time < 300: # double click scale -= 1 if scale < min_scale: scale = min_scale else: # single click scale += 1 if scale > max_scale: scale = max_scale last_click_time = pygame.time.get_ticks() last_click_pos = event.pos # 将图像转换为 Pygame Surface 对象 surf = pygame.surfarray.make_surface(frame) # 缩放图像 scaled_surf = pygame.transform.scale(surf, (int(surf.get_width() * scale), int(surf.get_height() * scale))) # 显示图像 screen.fill((255, 255, 255)) screen.blit(scaled_surf, (SCREEN_WIDTH // 2 - scaled_surf.get_width() // 2, SCREEN_HEIGHT // 2 - scaled_surf.get_height() // 2)) pygame.display.flip() ``` 这个程序会不断读取摄像头数据，将其转换为 Pygame Surface 对象，然后在 Pygame 窗口中进行缩放显示。你可以通过按下 ESC 键或关闭 Pygame 窗口来退出程序。在程序运行过程中，你可以使用鼠标左键来进行缩放操作。