我想从网络摄像头加载图像以在pygame上显示 我正在使用视频录像
from VideoCapture import Device
import pygame
import time
In=1
pygame.init()
w = 640
h = 480
size=(w,h)
screen = pygame.display.set_mode(size)
while True:
cam = Device()
cam.saveSnapshot(str(In)+".jpg")
img=pygame.image.load(In)
screen.blit(img,(0,0))
In=int(In)+1
In=str(In)
为什么这不起作用.Pygame窗口打开但没有显示?
答案 0 :(得分:14)
你必须告诉pygame update the display。
在将图像blitting到屏幕后,在循环中添加以下行:
pygame.display.flip()
time.sleep
或pygame clock。
from VideoCapture import Device
import pygame
import time
In=1
pygame.init()
w = 640
h = 480
size=(w,h)
screen = pygame.display.set_mode(size)
c = pygame.time.Clock() # create a clock object for timing
while True:
cam = Device()
filename = str(In)+".jpg" # ensure filename is correct
cam.saveSnapshot(filename)
img=pygame.image.load(filename)
screen.blit(img,(0,0))
pygame.display.flip() # update the display
c.tick(3) # only three images per second
In += 1