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通过python脚本截取屏幕截图。 [Linux的]

我想通过python脚本截取屏幕截图并且不引人注意地保存它。

我只对Linux解决方案感兴趣,应该支持任何基于X的环境。

77
skyronic

这不需要使用scrot或ImageMagick。

import gtk.gdk

w = gtk.gdk.get_default_root_window()
sz = w.get_size()
print "The size of the window is %d x %d" % sz
pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8,sz[0],sz[1])
pb = pb.get_from_drawable(w,w.get_colormap(),0,0,0,0,sz[0],sz[1])
if (pb != None):
    pb.save("screenshot.png","png")
    print "Screenshot saved to screenshot.png."
else:
    print "Unable to get the screenshot."

借用 http://ubuntuforums.org/showpost.php?p=2681009&postcount=5

64
Rusty

在一个班级编译所有答案。输出PIL图像。

#!/usr/bin/env python
# encoding: utf-8
"""
screengrab.py

Created by Alex Snet on 2011-10-10.
Copyright (c) 2011 CodeTeam. All rights reserved.
"""

import sys
import os

import Image


class screengrab:
    def __init__(self):
        try:
            import gtk
        except ImportError:
            pass
        else:
            self.screen = self.getScreenByGtk

        try:
            import PyQt4
        except ImportError:
            pass
        else:
            self.screen = self.getScreenByQt

        try:
            import wx
        except ImportError:
            pass
        else:
            self.screen = self.getScreenByWx

        try:
            import ImageGrab
        except ImportError:
            pass
        else:
            self.screen = self.getScreenByPIL


    def getScreenByGtk(self):
        import gtk.gdk      
        w = gtk.gdk.get_default_root_window()
        sz = w.get_size()
        pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8,sz[0],sz[1])
        pb = pb.get_from_drawable(w,w.get_colormap(),0,0,0,0,sz[0],sz[1])
        if pb is None:
            return False
        else:
            width,height = pb.get_width(),pb.get_height()
            return Image.fromstring("RGB",(width,height),pb.get_pixels() )

    def getScreenByQt(self):
        from PyQt4.QtGui import QPixmap, QApplication
        from PyQt4.Qt import QBuffer, QIODevice
        import StringIO
        app = QApplication(sys.argv)
        buffer = QBuffer()
        buffer.open(QIODevice.ReadWrite)
        QPixmap.grabWindow(QApplication.desktop().winId()).save(buffer, 'png')
        strio = StringIO.StringIO()
        strio.write(buffer.data())
        buffer.close()
        del app
        strio.seek(0)
        return Image.open(strio)

    def getScreenByPIL(self):
        import ImageGrab
        img = ImageGrab.grab()
        return img

    def getScreenByWx(self):
        import wx
        wx.App()  # Need to create an App instance before doing anything
        screen = wx.ScreenDC()
        size = screen.GetSize()
        bmp = wx.EmptyBitmap(size[0], size[1])
        mem = wx.MemoryDC(bmp)
        mem.Blit(0, 0, size[0], size[1], screen, 0, 0)
        del mem  # Release bitmap
        #bmp.SaveFile('screenshot.png', wx.BITMAP_TYPE_PNG)
        myWxImage = wx.ImageFromBitmap( myBitmap )
        PilImage = Image.new( 'RGB', (myWxImage.GetWidth(), myWxImage.GetHeight()) )
        PilImage.fromstring( myWxImage.GetData() )
        return PilImage

if __== '__main__':
    s = screengrab()
    screen = s.screen()
    screen.show()
46
Alex Snet

只是为了完整性:Xlib - 但是在捕获整个屏幕时它有点慢:

from Xlib import display, X
import Image #PIL

W,H = 200,200
dsp = display.Display()
root = dsp.screen().root
raw = root.get_image(0, 0, W,H, X.ZPixmap, 0xffffffff)
image = Image.fromstring("RGB", (W, H), raw.data, "raw", "BGRX")
image.show()

可以尝试在PyXlib中的瓶颈文件中输入一些类型,然后使用Cython进行编译。这可能会提高速度。


编辑: 我们可以在C中编写函数的核心,然后在ctypes的python中使用它,这是我一起入侵的东西:

#include <stdio.h>
#include <X11/X.h>
#include <X11/Xlib.h>
//Compile hint: gcc -shared -O3 -lX11 -fPIC -Wl,-soname,prtscn -o prtscn.so prtscn.c

void getScreen(const int, const int, const int, const int, unsigned char *);
void getScreen(const int xx,const int yy,const int W, const int H, /*out*/ unsigned char * data) 
{
   Display *display = XOpenDisplay(NULL);
   Window root = DefaultRootWindow(display);

   XImage *image = XGetImage(display,root, xx,yy, W,H, AllPlanes, ZPixmap);

   unsigned long red_mask   = image->red_mask;
   unsigned long green_mask = image->green_mask;
   unsigned long blue_mask  = image->blue_mask;
   int x, y;
   int ii = 0;
   for (y = 0; y < H; y++) {
       for (x = 0; x < W; x++) {
         unsigned long pixel = XGetPixel(image,x,y);
         unsigned char blue  = (pixel & blue_mask);
         unsigned char green = (pixel & green_mask) >> 8;
         unsigned char red   = (pixel & red_mask) >> 16;

         data[ii + 2] = blue;
         data[ii + 1] = green;
         data[ii + 0] = red;
         ii += 3;
      }
   }
   XDestroyImage(image);
   XDestroyWindow(display, root);
   XCloseDisplay(display);
}

然后是python文件:

import ctypes
import os
from PIL import Image

LibName = 'prtscn.so'
AbsLibPath = os.path.dirname(os.path.abspath(__file__)) + os.path.sep + LibName
grab = ctypes.CDLL(AbsLibPath)

def grab_screen(x1,y1,x2,y2):
    w, h = x2-x1, y2-y1
    size = w * h
    objlength = size * 3

    grab.getScreen.argtypes = []
    result = (ctypes.c_ubyte*objlength)()

    grab.getScreen(x1,y1, w, h, result)
    return Image.frombuffer('RGB', (w, h), result, 'raw', 'RGB', 0, 1)

if __== '__main__':
  im = grab_screen(0,0,1440,900)
  im.show()
34
JHolta

这个适用于X11,也许也适用于Windows(有人,请检查)。需要 PyQt4

import sys
from PyQt4.QtGui import QPixmap, QApplication
app = QApplication(sys.argv)
QPixmap.grabWindow(QApplication.desktop().winId()).save('test.png', 'png')
18
Juliano

我有一个包装项目( pyscreenshot )用于scrot,imagemagick,pyqt,wx和pygtk。如果你有其中一个,你可以使用它。所有解决方案都包含在本讨论中。

安装:

easy_install pyscreenshot

例:

import pyscreenshot as ImageGrab

# fullscreen
im=ImageGrab.grab()
im.show()

# part of the screen
im=ImageGrab.grab(bbox=(10,10,500,500))
im.show()

# to file
ImageGrab.grab_to_file('im.png')
15
ponty

跨平台解决方案使用 wxPython

import wx
wx.App()  # Need to create an App instance before doing anything
screen = wx.ScreenDC()
size = screen.GetSize()
bmp = wx.EmptyBitmap(size[0], size[1])
mem = wx.MemoryDC(bmp)
mem.Blit(0, 0, size[0], size[1], screen, 0, 0)
del mem  # Release bitmap
bmp.SaveFile('screenshot.png', wx.BITMAP_TYPE_PNG)
8
Snowball
import ImageGrab
img = ImageGrab.grab()
img.save('test.jpg','JPEG')

这需要Python Imaging Library

7
Slava V

你可以用它

import os
os.system("import -window root screen_shot.png")
3
Ahir Kamlesh

一个简短的搜索出现 gtkShots 看起来它可能会帮助你,因为它是一个GPLed python截图程序,所以应该有你需要的东西。

3
Douglas Leeder

有点迟了但是从不容易

import autopy
import time
time.sleep(2)
b = autopy.bitmap.capture_screen()
b.save("C:/Users/mak/Desktop/m.png")
2
pkm

这个有一个python包 Autopy

位图模块可以屏幕抓取(bitmap.capture_screen)它是多平台(Windows,Linux,Osx)。

2
ouille

我最近写了一个包,它使用X11库获取屏幕截图,并将图像作为numpy数组返回。我实际上使用了这个线程中提到的一些建议并对它们进行了改进。在现代机器上,1080p分辨率的典型帧速率为60 + fps。实际上在我的开发机器上(大约3岁),我设法获得了200 fps。这是该项目的链接 https://github.com/mherkazandjian/fastgrab

1
mher

我无法使用pyscreenshot或scrot在Linux中截取屏幕截图,因为pyscreenshot的输出只是一个黑屏png图像文件。

但感谢上帝,还有另一种非常简单的方法可以在没有安装任何东西的情只需在代码中放入以下代码并使用python demo.py运行

import os
os.system("gnome-screenshot --file=this_directory.png")

gnome-screenshot --help还有很多可用的选项

Application Options:
  -c, --clipboard                Send the grab directly to the clipboard
  -w, --window                   Grab a window instead of the entire screen
  -a, --area                     Grab an area of the screen instead of the entire screen
  -b, --include-border           Include the window border with the screenshot
  -B, --remove-border            Remove the window border from the screenshot
  -p, --include-pointer          Include the pointer with the screenshot
  -d, --delay=seconds            Take screenshot after specified delay [in seconds]
  -e, --border-effect=effect     Effect to add to the border (shadow, border, vintage or none)
  -i, --interactive              Interactively set options
  -f, --file=filename            Save screenshot directly to this file
  --version                      Print version information and exit
  --display=DISPLAY              X display to use
1
cyera

这个帖子

 import os
 os.system("import -window root temp.png")
1
anderstood

这是一个老问题。我想用新工具回答它。

使用python 3(应该使用python 2,但我没有测试它)和PyQt5。

最小的工作示例。将它复制到python Shell并获得结果。

from PyQt5.QtWidgets import QApplication
app = QApplication([])
screen = app.primaryScreen()
screenshot = screen.grabWindow(QApplication.desktop().winId())
screenshot.save('/tmp/screenshot.png')
0
rominf