如何在pygame中显示图像? [英] How to display Image in pygame?
本文介绍了如何在pygame中显示图像?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
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捕捉
I want to load an image from webcam to display on pygame I am using videocapture
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?
Why does this not work.Pygame window opens but nothing displays?
推荐答案
你必须告诉 pygame 更新显示.
You have to tell pygame to update the display.
在将图像传送到屏幕后,在循环中添加以下行:
Add the following line in your loop after blitting the image to the screen:
pygame.display.flip()
<小时>
顺便说一句,您可能想要限制每秒拍摄的图像数量.使用 time.sleep
或 pygame时钟.
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
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