我需要python中的快速截图

import gi 
from gi.repository import Gtk,Gdk 
from gi.repository.GdkPixbuf import Pixbuf, InterpType 
from PIL import Image 
import inspect 
window = Gdk.get_default_root_window() 
pb = Gdk.pixbuf_get_from_window(window, 840,380,240,230) 
height=pb.get_height() 
width=pb.get_width() 
#print pb.get_pixels() 
im = Image.frombuffer("RGB", (width,height) ,pb.get_pixels(), 'raw', 'RGB', 0, 1) 
im.save('f.png')

这是我在python中的代码来截取屏幕截图。我需要它通过处理这个镜头给我的图像来在电脑上玩游戏。但我的问题是玩游戏太慢了。因此，我需要一个非常快速的方法来做到这一点捕捉至少25 fps我需要python中的快速截图

来源

2017-05-04 mr.potato

在哪个平台上？视窗？ –

@JonasByströmno ubuntu –

25fps你的意思是捕捉视频？为什么不拍摄视频？ http://stackoverflow.com/questions/35097837/capture-video-data-from-screen-in-python – RvdK

下面的代码是pyside采取屏幕截图的示例代码。少量编辑可以帮助您获得结果。

#!/usr/bin/env python 

############################################################################# 
## 
## Copyright (C) 2005-2005 Trolltech AS. All rights reserved. 
## 
## This file is part of the example classes of the Qt Toolkit. 
## 
## This file may be used under the terms of the GNU General Public 
## License version 2.0 as published by the Free Software Foundation 
## and appearing in the file LICENSE.GPL included in the packaging of 
## this file. Please review the following information to ensure GNU 
## General Public Licensing requirements will be met: 
## http://www.trolltech.com/products/qt/opensource.html 
## 
## If you are unsure which license is appropriate for your use, please 
## review the following information: 
## http://www.trolltech.com/products/qt/licensing.html or contact the 
## sales department at [email protected] 
## 
## This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE 
## WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 
## 
############################################################################# 

from PySide import QtCore, QtGui 


class Screenshot(QtGui.QWidget): 
    def __init__(self): 
     super(Screenshot, self).__init__() 

     self.screenshotLabel = QtGui.QLabel() 
     self.screenshotLabel.setSizePolicy(QtGui.QSizePolicy.Expanding, 
       QtGui.QSizePolicy.Expanding) 
     self.screenshotLabel.setAlignment(QtCore.Qt.AlignCenter) 
     self.screenshotLabel.setMinimumSize(240, 160) 

     self.createOptionsGroupBox() 
     self.createButtonsLayout() 

     mainLayout = QtGui.QVBoxLayout() 
     mainLayout.addWidget(self.screenshotLabel) 
     mainLayout.addWidget(self.optionsGroupBox) 
     mainLayout.addLayout(self.buttonsLayout) 
     self.setLayout(mainLayout) 

     self.shootScreen() 
     self.delaySpinBox.setValue(5) 

     self.setWindowTitle("Screenshot") 
     self.resize(300, 200) 

    def resizeEvent(self, event): 
     scaledSize = self.originalPixmap.size() 
     scaledSize.scale(self.screenshotLabel.size(), QtCore.Qt.KeepAspectRatio) 
     if not self.screenshotLabel.pixmap() or scaledSize != self.screenshotLabel.pixmap().size(): 
      self.updateScreenshotLabel() 

    def newScreenshot(self): 
     if self.hideThisWindowCheckBox.isChecked(): 
      self.hide() 
     self.newScreenshotButton.setDisabled(True) 

     QtCore.QTimer.singleShot(self.delaySpinBox.value() * 1000, 
       self.shootScreen) 

    def saveScreenshot(self): 
     format = 'png' 
     initialPath = QtCore.QDir.currentPath() + "/untitled." + format 

     fileName,_ = QtGui.QFileDialog.getSaveFileName(self, "Save As", 
       initialPath, 
       "%s Files (*.%s);;All Files (*)" % (format.upper(), format)) 
     if fileName: 
      self.originalPixmap.save(fileName, format) 

    def shootScreen(self): 
     if self.delaySpinBox.value() != 0: 
      QtGui.qApp.beep() 

     # Garbage collect any existing image first. 
     self.originalPixmap = None 
     self.originalPixmap = QtGui.QPixmap.grabWindow(QtGui.QApplication.desktop().winId()) 
     self.updateScreenshotLabel() 

     self.newScreenshotButton.setDisabled(False) 
     if self.hideThisWindowCheckBox.isChecked(): 
      self.show() 

    def updateCheckBox(self): 
     if self.delaySpinBox.value() == 0: 
      self.hideThisWindowCheckBox.setDisabled(True) 
     else: 
      self.hideThisWindowCheckBox.setDisabled(False) 

    def createOptionsGroupBox(self): 
     self.optionsGroupBox = QtGui.QGroupBox("Options") 

     self.delaySpinBox = QtGui.QSpinBox() 
     self.delaySpinBox.setSuffix(" s") 
     self.delaySpinBox.setMaximum(60) 
     self.delaySpinBox.valueChanged.connect(self.updateCheckBox) 

     self.delaySpinBoxLabel = QtGui.QLabel("Screenshot Delay:") 

     self.hideThisWindowCheckBox = QtGui.QCheckBox("Hide This Window") 

     optionsGroupBoxLayout = QtGui.QGridLayout() 
     optionsGroupBoxLayout.addWidget(self.delaySpinBoxLabel, 0, 0) 
     optionsGroupBoxLayout.addWidget(self.delaySpinBox, 0, 1) 
     optionsGroupBoxLayout.addWidget(self.hideThisWindowCheckBox, 1, 0, 1, 2) 
     self.optionsGroupBox.setLayout(optionsGroupBoxLayout) 

    def createButtonsLayout(self): 
     self.newScreenshotButton = self.createButton("New Screenshot", 
       self.newScreenshot) 

     self.saveScreenshotButton = self.createButton("Save Screenshot", 
       self.saveScreenshot) 

     self.quitScreenshotButton = self.createButton("Quit", self.close) 

     self.buttonsLayout = QtGui.QHBoxLayout() 
     self.buttonsLayout.addStretch() 
     self.buttonsLayout.addWidget(self.newScreenshotButton) 
     self.buttonsLayout.addWidget(self.saveScreenshotButton) 
     self.buttonsLayout.addWidget(self.quitScreenshotButton) 

    def createButton(self, text, member): 
     button = QtGui.QPushButton(text) 
     button.clicked.connect(member) 
     return button 

    def updateScreenshotLabel(self): 
     self.screenshotLabel.setPixmap(self.originalPixmap.scaled(
       self.screenshotLabel.size(), QtCore.Qt.KeepAspectRatio, 
       QtCore.Qt.SmoothTransformation)) 


if __name__ == '__main__': 

    import sys 

    app = QtGui.QApplication(sys.argv) 
    screenshot = Screenshot() 
    screenshot.show() 
    sys.exit(app.exec_())

来源

2017-05-04 07:37:55

它与其他截图一样缓慢 –

使用OBS软件（OpenSource）捕获游戏。我已经试过这个软件。这是我见过的最好的软件之一。请参阅以下链接https://obsproject.com/。我无法理解你为什么要在图像中捕捉？ –

我已经根据您的要求编写了程序。它在相同的目录中创建文件夹Capture。 Png图像将被保存在“Capture”文件夹中。

如果你需要更多的25fps，我建议使用OBS软件。

# -*- coding: utf-8 -*- 

# Form implementation generated from reading ui file 'ScreenCapture.ui' 
# 
# Created: Sat May 06 15:32:13 2017 
#  by: pyside-uic 0.2.15 running on PySide 1.2.4 
# 
# WARNING! All changes made in this file will be lost! 

from PySide import QtCore, QtGui 

class Ui_ScreenCapture(QtGui.QWidget): 
    def __init__(self): 
     QtGui.QWidget.__init__(self) 
     self.setupUi(self) 
     self.CreateCaptureFolder() 

    def setupUi(self, ScreenCapture): 
     ScreenCapture.setObjectName("ScreenCapture") 
     ScreenCapture.resize(180, 90) 
     self.verticalLayout = QtGui.QVBoxLayout(ScreenCapture) 
     self.verticalLayout.setObjectName("verticalLayout") 
     self.gridLayout = QtGui.QGridLayout() 
     self.gridLayout.setObjectName("gridLayout") 
     self.start = QtGui.QPushButton(ScreenCapture) 
     self.start.setObjectName("start") 
     self.gridLayout.addWidget(self.start, 1, 0, 1, 1) 
     #self.stop = QtGui.QPushButton(ScreenCapture) 
     #self.stop.setObjectName("stop") 
     #self.gridLayout.addWidget(self.stop, 1, 1, 1, 1) 
     self.sbfps = QtGui.QSpinBox(ScreenCapture) 
     self.sbfps.setPrefix("") 
     self.sbfps.setMinimum(1) 
     self.sbfps.setMaximum(60) 
     self.sbfps.setObjectName("sbfps") 
     self.gridLayout.addWidget(self.sbfps, 0, 1, 1, 1) 
     self.label = QtGui.QLabel(ScreenCapture) 
     self.label.setObjectName("label") 
     self.gridLayout.addWidget(self.label, 0, 0, 1, 1) 
     self.verticalLayout.addLayout(self.gridLayout) 

     self.retranslateUi(ScreenCapture) 
     QtCore.QMetaObject.connectSlotsByName(ScreenCapture) 

    def retranslateUi(self, ScreenCapture): 
     ScreenCapture.setWindowTitle(QtGui.QApplication.translate("ScreenCapture", "Screen Capture", None, QtGui.QApplication.UnicodeUTF8)) 
     self.start.setText(QtGui.QApplication.translate("ScreenCapture", "Start", None, QtGui.QApplication.UnicodeUTF8)) 
     #self.stop.setText(QtGui.QApplication.translate("ScreenCapture", "Stop", None, QtGui.QApplication.UnicodeUTF8)) 
     self.sbfps.setSuffix(QtGui.QApplication.translate("ScreenCapture", " fps", None, QtGui.QApplication.UnicodeUTF8)) 
     self.label.setText(QtGui.QApplication.translate("ScreenCapture", "Screen Shot FPS", None, QtGui.QApplication.UnicodeUTF8)) 
########################################################################### 
     self.fname = 1 
     self.start.clicked.connect(self.loop) 
########################################################################### 
    def CreateCaptureFolder(self): 
     if QtCore.QDir("Capture").exists(): 
      print "Folder Exists" 
      pass 
     else: 
      print "Capture folder not exists" 
      QtCore.QDir().mkdir("Capture") 
      print "Created folder capture" 

    def Capture(self): 
     self.start.setEnabled(False) 
     self.originalPixmap = None 
     self.originalPixmap = QtGui.QPixmap.grabWindow(QtGui.QApplication.desktop().winId())  
     format = 'png' 
     initialPath = QtCore.QDir.currentPath() + "/Capture/" 

     fileName = initialPath + str(self.fname) + '.' + format 

     if fileName: 
      self.originalPixmap.save(fileName, format) 

     self.fname+=1 

    def loop(self): 
     self.timer = QtCore.QTimer() 
     self.timer.setSingleShot(False) 
     self.timer.timeout.connect(self.Capture) 
     self.timer.start(1000/self.sbfps.value()) 

    def stop(self): 
     self.timer.stop() 

if __name__ == "__main__": 
    import sys 
    app = QtGui.QApplication(sys.argv) 
    if not app: 
     app = QtGui.QApplication(sys.argv) 
    ui = Ui_ScreenCapture() 
    ui.show() 
    sys.exit(app.exec_())

来源

2017-05-06 11:10:31

我需要python中的快速截图

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