我试图让我的网络摄像头通过 pygame 显示视频。这是代码:
# import the relevant libraries
import time
import pygame
import pygame.camera
from pygame.locals import *
# this is where one sets how long the script
# sleeps for, between frames.sleeptime__in_seconds = 0.05
# initialise the display window
pygame.init()
pygame.camera.init()
screen = pygame.display.set_mode((640, 480), 0, 32)
# set up a camera object
cam = pygame.camera.Camera(0)
# start the camera
cam.start()
while 1:
# sleep between every frame
time.sleep( 10 )
# fetch the camera image
image = cam.get_image()
# blank out the screen
screen.fill((0,0,2))
# copy the camera image to the screen
screen.blit( image, ( 0, 0 ) )
# update the screen to show the latest screen image
pygame.display.update()
当我尝试这个时,我从 screen.blit( image, ( 0, 0 ) ) 部分得到一个错误
Traceback (most recent call last):
File "C:\Python32\src\webcam.py", line 28, in <module>
screen.blit( image, ( 0, 0 ) )
TypeError: argument 1 must be pygame.Surface, not None
我认为这是因为我没有将图像转换为任何适用于 pygame 的图像,但我不知道。
任何帮助将不胜感激。谢谢。
-亚历克斯
好的,这是新代码:这个代码有效,因为它将图片保存到当前文件夹。弄清楚为什么最后一个有效。屏幕还是黑的虽然=\
# import the relevant libraries
import time
import pygame
import pygame.camera
from pygame.locals import *
# this is where one sets how long the script
# sleeps for, between frames.sleeptime__in_seconds = 0.05
# initialise the display window
pygame.init()
pygame.camera.init()
# set up a camera object
size = (640,480)
screen = pygame.display.set_mode(size,0)
surface = pygame.surface.Surface(size,0,screen)
cam = pygame.camera.Camera(0,size)
# start the camera
cam.start()
while 1:
# sleep between every frame
time.sleep( 10 )
# fetch the camera image
pic = cam.get_image(surface)
# blank out the screen
#screen.fill((0,0,0))
# copy the camera image to the screen
screen.blit(pic,(0,0))
# update the screen to show the latest screen image
p=("outimage.jpg")
pygame.image.save(surface,p)
pygame.display.update()