Python PYQT图形查看图像的像素值
我有一个关于如何在移动鼠标时从图片中获取RGB值的问题。我有几个Python PYQT图形查看图像的像素值,python,python-3.x,graphics,pyqt,pyqt5,Python,Python 3.x,Graphics,Pyqt,Pyqt5,我有一个关于如何在移动鼠标时从图片中获取RGB值的问题。我有几个行编辑框，我希望在将鼠标移到图片上时更改这些值。我很接近，但它还不起作用。我理解为什么这不是我想要的工作方式，但我不确定如何修复它 这是如何设置的 我使用Qt designer制作GUI，然后将其转换为python代码，我正在引用该代码。在我的主窗口中，我有一个MDI区域和一些行编辑框。当我打开一张照片时，它会创建一个新的MDI窗口，该窗口具有与其关联的图形视图和滚动区域。为了跟踪鼠标移动，我在图形视图的视口中使用installEv
行编辑行编辑框。当我打开一张照片时，它会创建一个新的MDI窗口，该窗口具有与其关联的图形视图
和滚动区域
。为了跟踪鼠标移动，我在图形视图的视口中使用installEventFilter
。所以任何在视图中的东西都会给我这个视图中的坐标，而不是整个画面本身
我的问题示例
如果我加载的图片比我的屏幕大，它会在侧面放置滚动条。只要我在顶部，一切似乎都正常工作，但如果我向下或向一侧或另一侧滚动，现在图片已移动，但视口未移动
我想要什么
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(818, 814)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setObjectName("gridLayout")
self.Button_LoadPhoto = QtWidgets.QPushButton(self.centralwidget)
self.Button_LoadPhoto.setObjectName("Button_LoadPhoto")
self.gridLayout.addWidget(self.Button_LoadPhoto, 1, 0, 1, 1)
self.splitter = QtWidgets.QSplitter(self.centralwidget)
self.splitter.setOrientation(QtCore.Qt.Horizontal)
self.splitter.setObjectName("splitter")
self.mdiArea = QtWidgets.QMdiArea(self.splitter)
self.mdiArea.setObjectName("mdiArea")
self.verticalLayoutWidget = QtWidgets.QWidget(self.splitter)
self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.tabWidget_Calb = QtWidgets.QTabWidget(self.verticalLayoutWidget)
self.tabWidget_Calb.setObjectName("tabWidget_Calb")
self.tab_calibration = QtWidgets.QWidget()
self.tab_calibration.setObjectName("tab_calibration")
self.gridLayout_3 = QtWidgets.QGridLayout(self.tab_calibration)
self.gridLayout_3.setContentsMargins(0, 0, 0, 0)
self.gridLayout_3.setObjectName("gridLayout_3")
self.UserInput_Calibration_ScaleFactor = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_ScaleFactor.setObjectName("UserInput_Calibration_ScaleFactor")
self.gridLayout_3.addWidget(self.UserInput_Calibration_ScaleFactor, 2, 2, 1, 2)
self.txt_Calibration_ScaleFactor = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_ScaleFactor.setObjectName("txt_Calibration_ScaleFactor")
self.gridLayout_3.addWidget(self.txt_Calibration_ScaleFactor, 2, 1, 1, 1)
self.txt_Calibration_X1 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_X1.setObjectName("txt_Calibration_X1")
self.gridLayout_3.addWidget(self.txt_Calibration_X1, 0, 0, 1, 1)
self.UserInput_Calibration_X1 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_X1.setObjectName("UserInput_Calibration_X1")
self.gridLayout_3.addWidget(self.UserInput_Calibration_X1, 0, 1, 1, 1)
self.txt_Calibration_Y1 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_Y1.setObjectName("txt_Calibration_Y1")
self.gridLayout_3.addWidget(self.txt_Calibration_Y1, 1, 0, 1, 1)
self.UserInput_Calibration_X2 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_X2.setObjectName("UserInput_Calibration_X2")
self.gridLayout_3.addWidget(self.UserInput_Calibration_X2, 0, 3, 1, 1)
self.UserInput_Calibration_Y2 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_Y2.setObjectName("UserInput_Calibration_Y2")
self.gridLayout_3.addWidget(self.UserInput_Calibration_Y2, 1, 3, 1, 1)
self.txt_Calibration_X2 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_X2.setObjectName("txt_Calibration_X2")
self.gridLayout_3.addWidget(self.txt_Calibration_X2, 0, 2, 1, 1)
self.UserInput_Calibration_Y1 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_Y1.setObjectName("UserInput_Calibration_Y1")
self.gridLayout_3.addWidget(self.UserInput_Calibration_Y1, 1, 1, 1, 1)
self.txt_Calibration_Y2 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_Y2.setObjectName("txt_Calibration_Y2")
self.gridLayout_3.addWidget(self.txt_Calibration_Y2, 1, 2, 1, 1)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.txt_scale = QtWidgets.QLabel(self.tab_calibration)
self.txt_scale.setObjectName("txt_scale")
self.horizontalLayout.addWidget(self.txt_scale)
self.radioButton_Log = QtWidgets.QRadioButton(self.tab_calibration)
self.radioButton_Log.setEnabled(True)
self.radioButton_Log.setChecked(True)
self.radioButton_Log.setObjectName("radioButton_Log")
self.horizontalLayout.addWidget(self.radioButton_Log)
self.radioButton_Linear = QtWidgets.QRadioButton(self.tab_calibration)
self.radioButton_Linear.setObjectName("radioButton_Linear")
self.horizontalLayout.addWidget(self.radioButton_Linear)
self.gridLayout_3.addLayout(self.horizontalLayout, 5, 0, 1, 4)
self.txt_Calibration_X1.raise_()
self.UserInput_Calibration_X1.raise_()
self.txt_Calibration_Y1.raise_()
self.UserInput_Calibration_Y1.raise_()
self.txt_Calibration_X2.raise_()
self.UserInput_Calibration_X2.raise_()
self.txt_Calibration_Y2.raise_()
self.UserInput_Calibration_Y2.raise_()
self.UserInput_Calibration_ScaleFactor.raise_()
self.txt_Calibration_ScaleFactor.raise_()
self.tabWidget_Calb.addTab(self.tab_calibration, "")
self.verticalLayout.addWidget(self.tabWidget_Calb)
self.tabWidget_2 = QtWidgets.QTabWidget(self.verticalLayoutWidget)
self.tabWidget_2.setObjectName("tabWidget_2")
self.tab_PValues = QtWidgets.QWidget()
self.tab_PValues.setObjectName("tab_PValues")
self.gridLayout_2 = QtWidgets.QGridLayout(self.tab_PValues)
self.gridLayout_2.setContentsMargins(0, 0, 0, 0)
self.gridLayout_2.setObjectName("gridLayout_2")
self.txt_PixelValue_G = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_G.setObjectName("txt_PixelValue_G")
self.gridLayout_2.addWidget(self.txt_PixelValue_G, 2, 0, 1, 1)
self.txt_PixelValue_R = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_R.setObjectName("txt_PixelValue_R")
self.gridLayout_2.addWidget(self.txt_PixelValue_R, 1, 0, 1, 1)
self.txt_PixelValue_Y = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_Y.setObjectName("txt_PixelValue_Y")
self.gridLayout_2.addWidget(self.txt_PixelValue_Y, 0, 3, 1, 1)
self.UserInput_PixelValue_Y = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_Y.setObjectName("UserInput_PixelValue_Y")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_Y, 0, 4, 1, 1)
self.UserInput_PixelValue_X = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_X.setObjectName("UserInput_PixelValue_X")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_X, 0, 1, 1, 1)
self.txt_PixelValue_X = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_X.setObjectName("txt_PixelValue_X")
self.gridLayout_2.addWidget(self.txt_PixelValue_X, 0, 0, 1, 1)
self.UserInput_PixelValue_R = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_R.setObjectName("UserInput_PixelValue_R")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_R, 1, 1, 1, 1)
self.UserInput_PixelValue_G = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_G.setObjectName("UserInput_PixelValue_G")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_G, 2, 1, 1, 1)
self.UserInput_PixelValue_B = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_B.setObjectName("UserInput_PixelValue_B")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_B, 3, 1, 1, 1)
self.txt_PixelValue_B = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_B.setObjectName("txt_PixelValue_B")
self.gridLayout_2.addWidget(self.txt_PixelValue_B, 3, 0, 1, 1)
self.tabWidget_2.addTab(self.tab_PValues, "")
self.tab_Statistics = QtWidgets.QWidget()
self.tab_Statistics.setObjectName("tab_Statistics")
self.tabWidget_2.addTab(self.tab_Statistics, "")
self.verticalLayout.addWidget(self.tabWidget_2)
self.tabWidget_3 = QtWidgets.QTabWidget(self.verticalLayoutWidget)
self.tabWidget_3.setObjectName("tabWidget_3")
self.tab_History = QtWidgets.QWidget()
self.tab_History.setObjectName("tab_History")
self.tabWidget_3.addTab(self.tab_History, "")
self.verticalLayout.addWidget(self.tabWidget_3)
self.gridLayout.addWidget(self.splitter, 0, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 818, 21))
self.menubar.setObjectName("menubar")
self.menuFile = QtWidgets.QMenu(self.menubar)
self.menuFile.setObjectName("menuFile")
self.menuEdit = QtWidgets.QMenu(self.menubar)
self.menuEdit.setObjectName("menuEdit")
self.menuImages = QtWidgets.QMenu(self.menubar)
self.menuImages.setObjectName("menuImages")
self.menuWindow = QtWidgets.QMenu(self.menubar)
self.menuWindow.setObjectName("menuWindow")
self.menuHelp = QtWidgets.QMenu(self.menubar)
self.menuHelp.setObjectName("menuHelp")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.TopToolBar = QtWidgets.QToolBar(MainWindow)
self.TopToolBar.setObjectName("TopToolBar")
MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.TopToolBar)
self.LeftToolBar = QtWidgets.QToolBar(MainWindow)
self.LeftToolBar.setObjectName("LeftToolBar")
MainWindow.addToolBar(QtCore.Qt.LeftToolBarArea, self.LeftToolBar)
self.actionNew = QtWidgets.QAction(MainWindow)
self.actionNew.setObjectName("actionNew")
self.actionOpen = QtWidgets.QAction(MainWindow)
self.actionOpen.setObjectName("actionOpen")
self.menuFile.addAction(self.actionNew)
self.menuFile.addAction(self.actionOpen)
self.menubar.addAction(self.menuFile.menuAction())
self.menubar.addAction(self.menuEdit.menuAction())
self.menubar.addAction(self.menuImages.menuAction())
self.menubar.addAction(self.menuWindow.menuAction())
self.menubar.addAction(self.menuHelp.menuAction())
self.retranslateUi(MainWindow)
self.tabWidget_Calb.setCurrentIndex(0)
self.tabWidget_2.setCurrentIndex(0)
self.tabWidget_3.setCurrentIndex(0)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.Button_LoadPhoto.setText(_translate("MainWindow", "Load Photo"))
self.txt_Calibration_ScaleFactor.setText(_translate("MainWindow", "Scale Factor:"))
self.txt_Calibration_X1.setText(_translate("MainWindow", "X1"))
self.txt_Calibration_Y1.setText(_translate("MainWindow", "Y1:"))
self.txt_Calibration_X2.setText(_translate("MainWindow", "X2:"))
self.txt_Calibration_Y2.setText(_translate("MainWindow", "Y2:"))
self.txt_scale.setText(_translate("MainWindow", "Scale:"))
self.radioButton_Log.setText(_translate("MainWindow", "Logarithmic"))
self.radioButton_Linear.setText(_translate("MainWindow", "Linear"))
self.tabWidget_Calb.setTabText(self.tabWidget_Calb.indexOf(self.tab_calibration), _translate("MainWindow", "Calibration"))
self.txt_PixelValue_G.setText(_translate("MainWindow", "G"))
self.txt_PixelValue_R.setText(_translate("MainWindow", "R"))
self.txt_PixelValue_Y.setText(_translate("MainWindow", "Y:"))
self.txt_PixelValue_X.setText(_translate("MainWindow", "X:"))
self.txt_PixelValue_B.setText(_translate("MainWindow", "B"))
self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_PValues), _translate("MainWindow", "Pixel Values"))
self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_Statistics), _translate("MainWindow", "Statistics"))
self.tabWidget_3.setTabText(self.tabWidget_3.indexOf(self.tab_History), _translate("MainWindow", "History"))
self.menuFile.setTitle(_translate("MainWindow", "File"))
self.menuEdit.setTitle(_translate("MainWindow", "Edit"))
self.menuImages.setTitle(_translate("MainWindow", "Images"))
self.menuWindow.setTitle(_translate("MainWindow", "Window"))
self.menuHelp.setTitle(_translate("MainWindow", "Help"))
self.TopToolBar.setWindowTitle(_translate("MainWindow", "toolBar_2"))
self.LeftToolBar.setWindowTitle(_translate("MainWindow", "toolBar"))
self.actionNew.setText(_translate("MainWindow", "New"))
self.actionOpen.setText(_translate("MainWindow", "Open"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
我的最终目标是能够获得鼠标当前所在图片中每个像素的坐标，然后从中提取RGB值。如果我移动鼠标，坐标就会改变。从这里开始，我只想在几个行编辑
框中编辑值，以便在移动鼠标时进行更改
主窗口的屏幕截图
主窗口
import sys
import os
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from Main_GUI import *
from GraphicsArea import *
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
QWidget.__init__(self,parent)
self.MainUi = Ui_MainWindow()
self.MainUi.setupUi(self)
self.setUpMainUiFunction()
def setUpMainUiFunction(self):
self.MainUi.actionOpen.triggered.connect(self.OpenDialog)
self.MainUi.Button_LoadPhoto.clicked.connect(self.OpenDialog)
open = QAction(QIcon("icons/open.bmp"),"open",self)
save = QAction(QIcon("icons/save.bmp"),"save",self)
NormalCursor = QAction(QIcon("icons/cursor-normal.png"),"NormalCursor",self)
CrosshairCursor = QAction(QIcon("icons/crosshair.png"),"CrosshairCursor",self)
self.MainUi.TopToolBar.addAction(open)
self.MainUi.TopToolBar.addAction(save)
self.MainUi.LeftToolBar.addAction(NormalCursor)
self.MainUi.LeftToolBar.addAction(CrosshairCursor)
self.MainUi.TopToolBar.actionTriggered[QAction].connect(self.toolbtnpressed)
def OpenDialog(self):
options = QFileDialog.Options()
options |= QFileDialog.DontUseNativeDialog
fileToOpen, _ = QFileDialog.getOpenFileNames(self,"Open File", "","JPEG Files (*.jpeg)", options=options)
pixmap = QtGui.QPixmap(fileToOpen[0])
self.showPicture(pixmap,pixmap.size().width(),pixmap.size().height())
self.MainUi.statusbar.showMessage("Successfully Loaded: "+ fileToOpen[0])
def showPicture(self,picture,width,height):
sub = QtWidgets.QMdiSubWindow()
self.Load_Picture = LoadPicture()
sub.setWidget(self.Load_Picture)
sub.setObjectName("Load_Picture_window")
sub.setWindowTitle("New Photo")
self.MainUi.mdiArea.addSubWindow(sub)
self.Load_Picture.setpicture(picture)
self.Load_Picture.MousePositionSignal.connect(self.PixelValueUpdate)
self.PictureWidth = width
self.PictureHeight = height
sub.resize(width/.92,self.MainUi.mdiArea.geometry().height())
sub.show()
self.NewPicture = picture.toImage()
def PixelValueUpdate(self,Coordinates):
if Coordinates.x():
R,G,B = QColor(self.NewPicture.pixel(Coordinates.x(),Coordinates.y())).getRgb()[:-1]
self.MainUi.UserInput_PixelValue_X.setText(str(Coordinates.x()))
self.MainUi.UserInput_PixelValue_Y.setText(str(Coordinates.y()))
self.MainUi.UserInput_PixelValue_R.setText(str(R))
self.MainUi.UserInput_PixelValue_G.setText(str(G))
self.MainUi.UserInput_PixelValue_B.setText(str(B))
QApplication.setOverrideCursor(Qt.CrossCursor)
self.UpdateStatueBar(Coordinates)
else:
QApplication.setOverrideCursor(Qt.ArrowCursor)
if __name__ == "__main__":
os.environ["QT_AUTO_SCREEN_SCALE_FACTOR"] = "1"
pyqtRemoveInputHook()
app = QtWidgets.QApplication(sys.argv)
app.setAttribute(Qt.AA_EnableHighDpiScaling,True)
screen_resolution = app.desktop().screenGeometry()
width, height = screen_resolution.width()/1.5, screen_resolution.height()/1.2
MainWindow = MainWindow()
MainWindow.resize(width,height)
MainWindow.setWindowTitle('Figure out name later')
MainWindow.show()
sys.exit(app.exec_())
这是我的主\u GUI.py文件
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(818, 814)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout.setObjectName("gridLayout")
self.Button_LoadPhoto = QtWidgets.QPushButton(self.centralwidget)
self.Button_LoadPhoto.setObjectName("Button_LoadPhoto")
self.gridLayout.addWidget(self.Button_LoadPhoto, 1, 0, 1, 1)
self.splitter = QtWidgets.QSplitter(self.centralwidget)
self.splitter.setOrientation(QtCore.Qt.Horizontal)
self.splitter.setObjectName("splitter")
self.mdiArea = QtWidgets.QMdiArea(self.splitter)
self.mdiArea.setObjectName("mdiArea")
self.verticalLayoutWidget = QtWidgets.QWidget(self.splitter)
self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.tabWidget_Calb = QtWidgets.QTabWidget(self.verticalLayoutWidget)
self.tabWidget_Calb.setObjectName("tabWidget_Calb")
self.tab_calibration = QtWidgets.QWidget()
self.tab_calibration.setObjectName("tab_calibration")
self.gridLayout_3 = QtWidgets.QGridLayout(self.tab_calibration)
self.gridLayout_3.setContentsMargins(0, 0, 0, 0)
self.gridLayout_3.setObjectName("gridLayout_3")
self.UserInput_Calibration_ScaleFactor = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_ScaleFactor.setObjectName("UserInput_Calibration_ScaleFactor")
self.gridLayout_3.addWidget(self.UserInput_Calibration_ScaleFactor, 2, 2, 1, 2)
self.txt_Calibration_ScaleFactor = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_ScaleFactor.setObjectName("txt_Calibration_ScaleFactor")
self.gridLayout_3.addWidget(self.txt_Calibration_ScaleFactor, 2, 1, 1, 1)
self.txt_Calibration_X1 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_X1.setObjectName("txt_Calibration_X1")
self.gridLayout_3.addWidget(self.txt_Calibration_X1, 0, 0, 1, 1)
self.UserInput_Calibration_X1 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_X1.setObjectName("UserInput_Calibration_X1")
self.gridLayout_3.addWidget(self.UserInput_Calibration_X1, 0, 1, 1, 1)
self.txt_Calibration_Y1 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_Y1.setObjectName("txt_Calibration_Y1")
self.gridLayout_3.addWidget(self.txt_Calibration_Y1, 1, 0, 1, 1)
self.UserInput_Calibration_X2 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_X2.setObjectName("UserInput_Calibration_X2")
self.gridLayout_3.addWidget(self.UserInput_Calibration_X2, 0, 3, 1, 1)
self.UserInput_Calibration_Y2 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_Y2.setObjectName("UserInput_Calibration_Y2")
self.gridLayout_3.addWidget(self.UserInput_Calibration_Y2, 1, 3, 1, 1)
self.txt_Calibration_X2 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_X2.setObjectName("txt_Calibration_X2")
self.gridLayout_3.addWidget(self.txt_Calibration_X2, 0, 2, 1, 1)
self.UserInput_Calibration_Y1 = QtWidgets.QLineEdit(self.tab_calibration)
self.UserInput_Calibration_Y1.setObjectName("UserInput_Calibration_Y1")
self.gridLayout_3.addWidget(self.UserInput_Calibration_Y1, 1, 1, 1, 1)
self.txt_Calibration_Y2 = QtWidgets.QLabel(self.tab_calibration)
self.txt_Calibration_Y2.setObjectName("txt_Calibration_Y2")
self.gridLayout_3.addWidget(self.txt_Calibration_Y2, 1, 2, 1, 1)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.txt_scale = QtWidgets.QLabel(self.tab_calibration)
self.txt_scale.setObjectName("txt_scale")
self.horizontalLayout.addWidget(self.txt_scale)
self.radioButton_Log = QtWidgets.QRadioButton(self.tab_calibration)
self.radioButton_Log.setEnabled(True)
self.radioButton_Log.setChecked(True)
self.radioButton_Log.setObjectName("radioButton_Log")
self.horizontalLayout.addWidget(self.radioButton_Log)
self.radioButton_Linear = QtWidgets.QRadioButton(self.tab_calibration)
self.radioButton_Linear.setObjectName("radioButton_Linear")
self.horizontalLayout.addWidget(self.radioButton_Linear)
self.gridLayout_3.addLayout(self.horizontalLayout, 5, 0, 1, 4)
self.txt_Calibration_X1.raise_()
self.UserInput_Calibration_X1.raise_()
self.txt_Calibration_Y1.raise_()
self.UserInput_Calibration_Y1.raise_()
self.txt_Calibration_X2.raise_()
self.UserInput_Calibration_X2.raise_()
self.txt_Calibration_Y2.raise_()
self.UserInput_Calibration_Y2.raise_()
self.UserInput_Calibration_ScaleFactor.raise_()
self.txt_Calibration_ScaleFactor.raise_()
self.tabWidget_Calb.addTab(self.tab_calibration, "")
self.verticalLayout.addWidget(self.tabWidget_Calb)
self.tabWidget_2 = QtWidgets.QTabWidget(self.verticalLayoutWidget)
self.tabWidget_2.setObjectName("tabWidget_2")
self.tab_PValues = QtWidgets.QWidget()
self.tab_PValues.setObjectName("tab_PValues")
self.gridLayout_2 = QtWidgets.QGridLayout(self.tab_PValues)
self.gridLayout_2.setContentsMargins(0, 0, 0, 0)
self.gridLayout_2.setObjectName("gridLayout_2")
self.txt_PixelValue_G = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_G.setObjectName("txt_PixelValue_G")
self.gridLayout_2.addWidget(self.txt_PixelValue_G, 2, 0, 1, 1)
self.txt_PixelValue_R = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_R.setObjectName("txt_PixelValue_R")
self.gridLayout_2.addWidget(self.txt_PixelValue_R, 1, 0, 1, 1)
self.txt_PixelValue_Y = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_Y.setObjectName("txt_PixelValue_Y")
self.gridLayout_2.addWidget(self.txt_PixelValue_Y, 0, 3, 1, 1)
self.UserInput_PixelValue_Y = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_Y.setObjectName("UserInput_PixelValue_Y")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_Y, 0, 4, 1, 1)
self.UserInput_PixelValue_X = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_X.setObjectName("UserInput_PixelValue_X")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_X, 0, 1, 1, 1)
self.txt_PixelValue_X = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_X.setObjectName("txt_PixelValue_X")
self.gridLayout_2.addWidget(self.txt_PixelValue_X, 0, 0, 1, 1)
self.UserInput_PixelValue_R = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_R.setObjectName("UserInput_PixelValue_R")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_R, 1, 1, 1, 1)
self.UserInput_PixelValue_G = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_G.setObjectName("UserInput_PixelValue_G")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_G, 2, 1, 1, 1)
self.UserInput_PixelValue_B = QtWidgets.QLineEdit(self.tab_PValues)
self.UserInput_PixelValue_B.setObjectName("UserInput_PixelValue_B")
self.gridLayout_2.addWidget(self.UserInput_PixelValue_B, 3, 1, 1, 1)
self.txt_PixelValue_B = QtWidgets.QLabel(self.tab_PValues)
self.txt_PixelValue_B.setObjectName("txt_PixelValue_B")
self.gridLayout_2.addWidget(self.txt_PixelValue_B, 3, 0, 1, 1)
self.tabWidget_2.addTab(self.tab_PValues, "")
self.tab_Statistics = QtWidgets.QWidget()
self.tab_Statistics.setObjectName("tab_Statistics")
self.tabWidget_2.addTab(self.tab_Statistics, "")
self.verticalLayout.addWidget(self.tabWidget_2)
self.tabWidget_3 = QtWidgets.QTabWidget(self.verticalLayoutWidget)
self.tabWidget_3.setObjectName("tabWidget_3")
self.tab_History = QtWidgets.QWidget()
self.tab_History.setObjectName("tab_History")
self.tabWidget_3.addTab(self.tab_History, "")
self.verticalLayout.addWidget(self.tabWidget_3)
self.gridLayout.addWidget(self.splitter, 0, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 818, 21))
self.menubar.setObjectName("menubar")
self.menuFile = QtWidgets.QMenu(self.menubar)
self.menuFile.setObjectName("menuFile")
self.menuEdit = QtWidgets.QMenu(self.menubar)
self.menuEdit.setObjectName("menuEdit")
self.menuImages = QtWidgets.QMenu(self.menubar)
self.menuImages.setObjectName("menuImages")
self.menuWindow = QtWidgets.QMenu(self.menubar)
self.menuWindow.setObjectName("menuWindow")
self.menuHelp = QtWidgets.QMenu(self.menubar)
self.menuHelp.setObjectName("menuHelp")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.TopToolBar = QtWidgets.QToolBar(MainWindow)
self.TopToolBar.setObjectName("TopToolBar")
MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.TopToolBar)
self.LeftToolBar = QtWidgets.QToolBar(MainWindow)
self.LeftToolBar.setObjectName("LeftToolBar")
MainWindow.addToolBar(QtCore.Qt.LeftToolBarArea, self.LeftToolBar)
self.actionNew = QtWidgets.QAction(MainWindow)
self.actionNew.setObjectName("actionNew")
self.actionOpen = QtWidgets.QAction(MainWindow)
self.actionOpen.setObjectName("actionOpen")
self.menuFile.addAction(self.actionNew)
self.menuFile.addAction(self.actionOpen)
self.menubar.addAction(self.menuFile.menuAction())
self.menubar.addAction(self.menuEdit.menuAction())
self.menubar.addAction(self.menuImages.menuAction())
self.menubar.addAction(self.menuWindow.menuAction())
self.menubar.addAction(self.menuHelp.menuAction())
self.retranslateUi(MainWindow)
self.tabWidget_Calb.setCurrentIndex(0)
self.tabWidget_2.setCurrentIndex(0)
self.tabWidget_3.setCurrentIndex(0)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.Button_LoadPhoto.setText(_translate("MainWindow", "Load Photo"))
self.txt_Calibration_ScaleFactor.setText(_translate("MainWindow", "Scale Factor:"))
self.txt_Calibration_X1.setText(_translate("MainWindow", "X1"))
self.txt_Calibration_Y1.setText(_translate("MainWindow", "Y1:"))
self.txt_Calibration_X2.setText(_translate("MainWindow", "X2:"))
self.txt_Calibration_Y2.setText(_translate("MainWindow", "Y2:"))
self.txt_scale.setText(_translate("MainWindow", "Scale:"))
self.radioButton_Log.setText(_translate("MainWindow", "Logarithmic"))
self.radioButton_Linear.setText(_translate("MainWindow", "Linear"))
self.tabWidget_Calb.setTabText(self.tabWidget_Calb.indexOf(self.tab_calibration), _translate("MainWindow", "Calibration"))
self.txt_PixelValue_G.setText(_translate("MainWindow", "G"))
self.txt_PixelValue_R.setText(_translate("MainWindow", "R"))
self.txt_PixelValue_Y.setText(_translate("MainWindow", "Y:"))
self.txt_PixelValue_X.setText(_translate("MainWindow", "X:"))
self.txt_PixelValue_B.setText(_translate("MainWindow", "B"))
self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_PValues), _translate("MainWindow", "Pixel Values"))
self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_Statistics), _translate("MainWindow", "Statistics"))
self.tabWidget_3.setTabText(self.tabWidget_3.indexOf(self.tab_History), _translate("MainWindow", "History"))
self.menuFile.setTitle(_translate("MainWindow", "File"))
self.menuEdit.setTitle(_translate("MainWindow", "Edit"))
self.menuImages.setTitle(_translate("MainWindow", "Images"))
self.menuWindow.setTitle(_translate("MainWindow", "Window"))
self.menuHelp.setTitle(_translate("MainWindow", "Help"))
self.TopToolBar.setWindowTitle(_translate("MainWindow", "toolBar_2"))
self.LeftToolBar.setWindowTitle(_translate("MainWindow", "toolBar"))
self.actionNew.setText(_translate("MainWindow", "New"))
self.actionOpen.setText(_translate("MainWindow", "Open"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
主窗口的功能
import sys
import os
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from Main_GUI import *
from GraphicsArea import *
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
QWidget.__init__(self,parent)
self.MainUi = Ui_MainWindow()
self.MainUi.setupUi(self)
self.setUpMainUiFunction()
def setUpMainUiFunction(self):
self.MainUi.actionOpen.triggered.connect(self.OpenDialog)
self.MainUi.Button_LoadPhoto.clicked.connect(self.OpenDialog)
open = QAction(QIcon("icons/open.bmp"),"open",self)
save = QAction(QIcon("icons/save.bmp"),"save",self)
NormalCursor = QAction(QIcon("icons/cursor-normal.png"),"NormalCursor",self)
CrosshairCursor = QAction(QIcon("icons/crosshair.png"),"CrosshairCursor",self)
self.MainUi.TopToolBar.addAction(open)
self.MainUi.TopToolBar.addAction(save)
self.MainUi.LeftToolBar.addAction(NormalCursor)
self.MainUi.LeftToolBar.addAction(CrosshairCursor)
self.MainUi.TopToolBar.actionTriggered[QAction].connect(self.toolbtnpressed)
def OpenDialog(self):
options = QFileDialog.Options()
options |= QFileDialog.DontUseNativeDialog
fileToOpen, _ = QFileDialog.getOpenFileNames(self,"Open File", "","JPEG Files (*.jpeg)", options=options)
pixmap = QtGui.QPixmap(fileToOpen[0])
self.showPicture(pixmap,pixmap.size().width(),pixmap.size().height())
self.MainUi.statusbar.showMessage("Successfully Loaded: "+ fileToOpen[0])
def showPicture(self,picture,width,height):
sub = QtWidgets.QMdiSubWindow()
self.Load_Picture = LoadPicture()
sub.setWidget(self.Load_Picture)
sub.setObjectName("Load_Picture_window")
sub.setWindowTitle("New Photo")
self.MainUi.mdiArea.addSubWindow(sub)
self.Load_Picture.setpicture(picture)
self.Load_Picture.MousePositionSignal.connect(self.PixelValueUpdate)
self.PictureWidth = width
self.PictureHeight = height
sub.resize(width/.92,self.MainUi.mdiArea.geometry().height())
sub.show()
self.NewPicture = picture.toImage()
def PixelValueUpdate(self,Coordinates):
if Coordinates.x():
R,G,B = QColor(self.NewPicture.pixel(Coordinates.x(),Coordinates.y())).getRgb()[:-1]
self.MainUi.UserInput_PixelValue_X.setText(str(Coordinates.x()))
self.MainUi.UserInput_PixelValue_Y.setText(str(Coordinates.y()))
self.MainUi.UserInput_PixelValue_R.setText(str(R))
self.MainUi.UserInput_PixelValue_G.setText(str(G))
self.MainUi.UserInput_PixelValue_B.setText(str(B))
QApplication.setOverrideCursor(Qt.CrossCursor)
self.UpdateStatueBar(Coordinates)
else:
QApplication.setOverrideCursor(Qt.ArrowCursor)
if __name__ == "__main__":
os.environ["QT_AUTO_SCREEN_SCALE_FACTOR"] = "1"
pyqtRemoveInputHook()
app = QtWidgets.QApplication(sys.argv)
app.setAttribute(Qt.AA_EnableHighDpiScaling,True)
screen_resolution = app.desktop().screenGeometry()
width, height = screen_resolution.width()/1.5, screen_resolution.height()/1.2
MainWindow = MainWindow()
MainWindow.resize(width,height)
MainWindow.setWindowTitle('Figure out name later')
MainWindow.show()
sys.exit(app.exec_())
打开照片的主窗口截图
下面是我称之为GraphicsArea_GUI.py的小部件的代码
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_GraphicsArea(object):
def setupUi(self, GraphicsArea):
GraphicsArea.setObjectName("GraphicsArea")
GraphicsArea.resize(400, 300)
self.gridLayout = QtWidgets.QGridLayout(GraphicsArea)
self.gridLayout.setObjectName("gridLayout")
self.scrollArea = QtWidgets.QScrollArea(GraphicsArea)
self.scrollArea.setWidgetResizable(True)
self.scrollArea.setObjectName("scrollArea")
self.scrollAreaWidgetContents = QtWidgets.QWidget()
self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 380, 280))
self.scrollAreaWidgetContents.setObjectName("scrollAreaWidgetContents")
self.gridLayout_2 = QtWidgets.QGridLayout(self.scrollAreaWidgetContents)
self.gridLayout_2.setContentsMargins(0, 0, 0, 0)
self.gridLayout_2.setObjectName("gridLayout_2")
self.PictureArea = QtWidgets.QGraphicsView(self.scrollAreaWidgetContents)
self.PictureArea.setObjectName("PictureArea")
self.gridLayout_2.addWidget(self.PictureArea, 0, 0, 1, 1)
self.scrollArea.setWidget(self.scrollAreaWidgetContents)
self.gridLayout.addWidget(self.scrollArea, 0, 0, 1, 1)
self.retranslateUi(GraphicsArea)
QtCore.QMetaObject.connectSlotsByName(GraphicsArea)
def retranslateUi(self, GraphicsArea):
_translate = QtCore.QCoreApplication.translate
GraphicsArea.setWindowTitle(_translate("GraphicsArea", "Form"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
GraphicsArea = QtWidgets.QWidget()
ui = Ui_GraphicsArea()
ui.setupUi(GraphicsArea)
GraphicsArea.show()
sys.exit(app.exec_())
显示照片的MDI窗口
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from GraphicsArea_GUI import *
class LoadPicture(QWidget):
MousePositionSignal = pyqtSignal(object)
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self.GraphicAreaGUI = Ui_GraphicsArea()
self.GraphicAreaGUI.setupUi(self)
self.setUpLoadInputUi()
self.GraphicAreaGUI.PictureArea.viewport().installEventFilter(self)
def setUpLoadInputUi(self):
pass
self.scene=QGraphicsScene()
self.pixitem=QGraphicsPixmapItem()
self.grali=[]
def setpicture(self,pixmap):
self.pixitem.setPixmap(pixmap)
self.grali.append(self.pixitem)
self.scene.addItem(self.grali[-1])
self.GraphicAreaGUI.PictureArea.setScene(self.scene)
self.GraphicAreaGUI.PictureArea.show()
self.GraphicAreaGUI.PictureArea.setMouseTracking(True)
def eventFilter(self, source, event):
if (event.type() == QEvent.MouseMove and
source is self.GraphicAreaGUI.PictureArea.viewport()):
self.MousePositionSignal.emit(event)
return QWidget.eventFilter(self, source, event)
滚动滚动条时会得到错误的值，因为坐标与窗口而不是图像相关，要以简单的方式获得正确的坐标，需要覆盖QGraphicsPixmapItem
的hoverMoveEvent
方法，因此我们创建一个继承的类。问题在于QGraphicsItem
不是从QObject
继承的，因此它们不能发出信号，一个简单的解决方案是创建一个发出信号的类，并将其传递给自定义QGraphicsPixmapItem
类
class LogObject(QObject):
MousePixmapSignal = pyqtSignal(QPoint, QColor)
class PictureItem(QGraphicsPixmapItem):
def __init__(self, log, *args, **kwargs):
QGraphicsPixmapItem.__init__(self, *args, **kwargs)
self.setAcceptHoverEvents(True)
self.log = log
def hoverMoveEvent(self, event):
point = event.pos().toPoint()
color = QColor(self.pixmap().toImage().pixel(point.x(), point.y()))
self.log.MousePixmapSignal.emit(point, color)
QGraphicsPixmapItem.hoverMoveEvent(self, event)
def hoverEnterEvent(self, event):
QApplication.setOverrideCursor(Qt.CrossCursor)
QGraphicsPixmapItem.hoverMoveEvent(self, event)
def hoverLeaveEvent(self, event):
QApplication.setOverrideCursor(Qt.ArrowCursor)
QGraphicsPixmapItem.hoverLeaveEvent(self, event)
class LoadPicture(QWidget, Ui_GraphicsArea):
def __init__(self, pixmap, parent=None):
QWidget.__init__(self, parent)
self.setupUi(self)
self.log = LogObject(self)
self.PictureArea.setScene(QGraphicsScene())
self.item = PictureItem(self.log, pixmap)
self.PictureArea.scene().addItem(self.item)
self.resize(pixmap.size())
然后在必要时创建对象，并连接必要的元素：
class MainWindow(QMainWindow, Ui_MainWindow):
def __init__(self, *args, **kwargs):
QMainWindow.__init__(self, *args, **kwargs)
self.setupUi(self)
self.setUpMainUiFunction()
def setUpMainUiFunction(self):
self.actionOpen.triggered.connect(self.OpenDialog)
self.Button_LoadPhoto.clicked.connect(self.OpenDialog)
open = QAction(QIcon("icons/open.bmp"), "open", self)
save = QAction(QIcon("icons/save.bmp"), "save", self)
NormalCursor = QAction(QIcon("icons/cursor-normal.png"), "NormalCursor", self)
CrosshairCursor = QAction(QIcon("icons/crosshair.png"), "CrosshairCursor", self)
self.TopToolBar.addAction(open)
self.TopToolBar.addAction(save)
self.LeftToolBar.addAction(NormalCursor)
self.LeftToolBar.addAction(CrosshairCursor)
# self.TopToolBar.actionTriggered[QAction].connect(self.toolbtnpressed)
def OpenDialog(self):
options = QFileDialog.Options()
options |= QFileDialog.DontUseNativeDialog
PicturePath = QStandardPaths.standardLocations(QStandardPaths.PicturesLocation)[0]
filenames, _ = QFileDialog.getOpenFileNames(self, "Open File", PicturePath, "JPEG File (*.png)", options=options)
for filename in filenames:
pixmap = QPixmap(filename)
self.showPicture(pixmap)
self.statusbar.showMessage("Successfully Loaded: {}".format(filename))
def showPicture(self, picture):
sub = QMdiSubWindow(self)
loadPicture = LoadPicture(picture, sub)
sub.setWidget(loadPicture)
sub.setObjectName("Load_Picture_window")
sub.setWindowTitle("New Photo")
self.mdiArea.addSubWindow(sub)
sub.show()
sub.resize(picture.size())
loadPicture.log.MousePixmapSignal.connect(self.updatePixel)
def updatePixel(self, point, color):
self.UserInput_PixelValue_X.setText("{}".format(point.x()))
self.UserInput_PixelValue_Y.setText("{}".format(point.y()))
self.UserInput_PixelValue_R.setText("{}".format(color.red()))
self.UserInput_PixelValue_G.setText("{}".format(color.green()))
self.UserInput_PixelValue_B.setText("{}".format(color.blue()))
如果您共享Ui_MainWindow和Ui_GraphicsArea，或者您可以通过github、gist或类似方式共享您的项目，那就太好了。我编辑了我的帖子，并添加了代码，如果我希望能够单击并拖动鼠标绘制一个临时框，该框稍后将消失，这会涉及到一个不同的结构，还是我能够在此基础上继续发展？