import argparse import collections import functools import os.path import re import subprocess import sys try: from PyQt5 import QtCore from PyQt5.QtCore import Qt from PyQt5 import QtGui from PyQt5 import QtWidgets PYQT5 = True except ImportError: from PyQt4 import QtCore from PyQt4.QtCore import Qt from PyQt4 import QtGui from PyQt4 import QtGui as QtWidgets PYQT5 = False from labelme.canvas import Canvas from labelme.colorDialog import ColorDialog from labelme.labelDialog import LabelDialog from labelme.labelFile import LabelFile from labelme.labelFile import LabelFileError from labelme.lib import addActions from labelme.lib import fmtShortcut from labelme.lib import newAction from labelme.lib import newIcon from labelme.lib import struct from labelme import resources # NOQA from labelme.shape import DEFAULT_FILL_COLOR from labelme.shape import DEFAULT_LINE_COLOR from labelme.shape import Shape from labelme.toolBar import ToolBar from labelme.zoomWidget import ZoomWidget __appname__ = 'labelme' # FIXME # - [medium] Set max zoom value to something big enough for FitWidth/Window # TODO(unknown): # - [high] Automatically add file suffix when saving. # - [high] Add polygon movement with arrow keys # - [high] Deselect shape when clicking and already selected(?) # - [high] Sanitize shortcuts between beginner/advanced mode. # - [medium] Zoom should keep the image centered. # - [medium] Add undo button for vertex addition. # - [low,maybe] Open images with drag & drop. # - [low,maybe] Preview images on file dialogs. # - [low,maybe] Sortable label list. # - Zoom is too "steppy". # Utility functions and classes. class WindowMixin(object): def menu(self, title, actions=None): menu = self.menuBar().addMenu(title) if actions: addActions(menu, actions) return menu def toolbar(self, title, actions=None): toolbar = ToolBar(title) toolbar.setObjectName('%sToolBar' % title) # toolbar.setOrientation(Qt.Vertical) toolbar.setToolButtonStyle(Qt.ToolButtonTextUnderIcon) if actions: addActions(toolbar, actions) self.addToolBar(Qt.LeftToolBarArea, toolbar) return toolbar class EscapableQListWidget(QtWidgets.QListWidget): def keyPressEvent(self, event): if event.key() == Qt.Key_Escape: self.clearSelection() class MainWindow(QtWidgets.QMainWindow, WindowMixin): FIT_WINDOW, FIT_WIDTH, MANUAL_ZOOM = 0, 1, 2 def __init__(self, filename=None, output=None, store_data=True, labels=None, sort_labels=True): super(MainWindow, self).__init__() self.setWindowTitle(__appname__) # Whether we need to save or not. self.dirty = False self._noSelectionSlot = False self._beginner = True self.screencastViewer = "firefox" self.screencast = "screencast.ogv" # Main widgets and related state. self.labelDialog = LabelDialog(parent=self, labels=labels, sort_labels=sort_labels) self.labelList = QtWidgets.QListWidget() self.itemsToShapes = [] self.lastOpenDir = None self.labelList.itemActivated.connect(self.labelSelectionChanged) self.labelList.itemSelectionChanged.connect(self.labelSelectionChanged) self.labelList.itemDoubleClicked.connect(self.editLabel) # Connect to itemChanged to detect checkbox changes. self.labelList.itemChanged.connect(self.labelItemChanged) listLayout = QtWidgets.QVBoxLayout() listLayout.setContentsMargins(0, 0, 0, 0) listLayout.addWidget(self.labelList) self.editButton = QtWidgets.QToolButton() self.editButton.setToolButtonStyle(Qt.ToolButtonTextBesideIcon) self.labelListContainer = QtWidgets.QWidget() self.labelListContainer.setLayout(listLayout) listLayout.addWidget(self.editButton) # 0, Qt.AlignCenter) listLayout.addWidget(self.labelList) self.uniqLabelList = EscapableQListWidget() self.uniqLabelList.setToolTip( "Select label to start annotating for it. " "Press 'Esc' to deselect.") if labels: self.uniqLabelList.addItems(labels) self.uniqLabelList.sortItems() self.labelsdock = QtWidgets.QDockWidget(u'Label List', self) self.labelsdock.setObjectName(u'Label List') self.labelsdock.setWidget(self.uniqLabelList) self.dock = QtWidgets.QDockWidget('Polygon Labels', self) self.dock.setObjectName('Labels') self.dock.setWidget(self.labelListContainer) self.fileListWidget = QtWidgets.QListWidget() self.fileListWidget.itemSelectionChanged.connect( self.fileSelectionChanged) filelistLayout = QtWidgets.QVBoxLayout() filelistLayout.setContentsMargins(0, 0, 0, 0) filelistLayout.addWidget(self.fileListWidget) fileListContainer = QtWidgets.QWidget() fileListContainer.setLayout(filelistLayout) self.filedock = QtWidgets.QDockWidget(u'File List', self) self.filedock.setObjectName(u'Files') self.filedock.setWidget(fileListContainer) self.zoomWidget = ZoomWidget() self.colorDialog = ColorDialog(parent=self) self.canvas = Canvas() self.canvas.zoomRequest.connect(self.zoomRequest) scroll = QtWidgets.QScrollArea() scroll.setWidget(self.canvas) scroll.setWidgetResizable(True) self.scrollBars = { Qt.Vertical: scroll.verticalScrollBar(), Qt.Horizontal: scroll.horizontalScrollBar(), } self.canvas.scrollRequest.connect(self.scrollRequest) self.canvas.newShape.connect(self.newShape) self.canvas.shapeMoved.connect(self.setDirty) self.canvas.selectionChanged.connect(self.shapeSelectionChanged) self.canvas.drawingPolygon.connect(self.toggleDrawingSensitive) self.setCentralWidget(scroll) self.addDockWidget(Qt.RightDockWidgetArea, self.labelsdock) self.addDockWidget(Qt.RightDockWidgetArea, self.dock) self.addDockWidget(Qt.RightDockWidgetArea, self.filedock) self.filedock.setFeatures(QtWidgets.QDockWidget.DockWidgetFloatable) self.dockFeatures = (QtWidgets.QDockWidget.DockWidgetClosable | QtWidgets.QDockWidget.DockWidgetFloatable) self.dock.setFeatures(self.dock.features() ^ self.dockFeatures) # Actions action = functools.partial(newAction, self) quit = action('&Quit', self.close, 'Ctrl+Q', 'quit', 'Quit application') open = action('&Open', self.openFile, 'Ctrl+O', 'open', 'Open image or label file') opendir = action('&Open Dir', self.openDirDialog, 'Ctrl+u', 'open', u'Open Dir') openNextImg = action('&Next Image', self.openNextImg, 'd', 'next', u'Open Next') openPrevImg = action('&Prev Image', self.openPrevImg, 'a', 'prev', u'Open Prev') save = action('&Save', self.saveFile, 'Ctrl+S', 'save', 'Save labels to file', enabled=False) saveAs = action('&Save As', self.saveFileAs, 'Ctrl+Shift+S', 'save-as', 'Save labels to a different file', enabled=False) close = action('&Close', self.closeFile, 'Ctrl+W', 'close', 'Close current file') color1 = action('Polygon &Line Color', self.chooseColor1, 'Ctrl+L', 'color_line', 'Choose polygon line color') color2 = action('Polygon &Fill Color', self.chooseColor2, 'Ctrl+Shift+L', 'color', 'Choose polygon fill color') createMode = action('Create\nPolygo&ns', self.setCreateMode, 'Ctrl+N', 'new', 'Start drawing polygons', enabled=False) editMode = action('&Edit\nPolygons', self.setEditMode, 'Ctrl+J', 'edit', 'Move and edit polygons', enabled=False) create = action('Create\nPolygo&n', self.createShape, 'Ctrl+N', 'new', 'Draw a new polygon', enabled=False) delete = action('Delete\nPolygon', self.deleteSelectedShape, 'Delete', 'delete', 'Delete', enabled=False) copy = action('&Duplicate\nPolygon', self.copySelectedShape, 'Ctrl+D', 'copy', 'Create a duplicate of the selected polygon', enabled=False) undoLastPoint = action('Undo last point', self.canvas.undoLastPoint, ['Ctrl+Z', 'Backspace'], 'undoLastPoint', 'Undo last drawn point', enabled=False) advancedMode = action('&Advanced Mode', self.toggleAdvancedMode, 'Ctrl+Shift+A', 'expert', 'Switch to advanced mode', checkable=True) hideAll = action('&Hide\nPolygons', functools.partial(self.togglePolygons, False), 'Ctrl+H', 'hide', 'Hide all polygons', enabled=False) showAll = action('&Show\nPolygons', functools.partial(self.togglePolygons, True), 'Ctrl+A', 'hide', 'Show all polygons', enabled=False) help = action('&Tutorial', self.tutorial, 'Ctrl+T', 'help', 'Show screencast of introductory tutorial') zoom = QtWidgets.QWidgetAction(self) zoom.setDefaultWidget(self.zoomWidget) self.zoomWidget.setWhatsThis( "Zoom in or out of the image. Also accessible with" " %s and %s from the canvas." % (fmtShortcut("Ctrl+[-+]"), fmtShortcut("Ctrl+Wheel"))) self.zoomWidget.setEnabled(False) zoomIn = action('Zoom &In', functools.partial(self.addZoom, 10), 'Ctrl++', 'zoom-in', 'Increase zoom level', enabled=False) zoomOut = action('&Zoom Out', functools.partial(self.addZoom, -10), 'Ctrl+-', 'zoom-out', 'Decrease zoom level', enabled=False) zoomOrg = action('&Original size', functools.partial(self.setZoom, 100), 'Ctrl+=', 'zoom', 'Zoom to original size', enabled=False) fitWindow = action('&Fit Window', self.setFitWindow, 'Ctrl+F', 'fit-window', 'Zoom follows window size', checkable=True, enabled=False) fitWidth = action('Fit &Width', self.setFitWidth, 'Ctrl+Shift+F', 'fit-width', 'Zoom follows window width', checkable=True, enabled=False) # Group zoom controls into a list for easier toggling. zoomActions = (self.zoomWidget, zoomIn, zoomOut, zoomOrg, fitWindow, fitWidth) self.zoomMode = self.MANUAL_ZOOM self.scalers = { self.FIT_WINDOW: self.scaleFitWindow, self.FIT_WIDTH: self.scaleFitWidth, # Set to one to scale to 100% when loading files. self.MANUAL_ZOOM: lambda: 1, } edit = action('&Edit Label', self.editLabel, 'Ctrl+E', 'edit', 'Modify the label of the selected polygon', enabled=False) self.editButton.setDefaultAction(edit) shapeLineColor = action( 'Shape &Line Color', self.chshapeLineColor, icon='color_line', tip='Change the line color for this specific shape', enabled=False) shapeFillColor = action( 'Shape &Fill Color', self.chshapeFillColor, icon='color', tip='Change the fill color for this specific shape', enabled=False) labels = self.dock.toggleViewAction() labels.setText('Show/Hide Label Panel') labels.setShortcut('Ctrl+Shift+L') # Lavel list context menu. labelMenu = QtWidgets.QMenu() addActions(labelMenu, (edit, delete)) self.labelList.setContextMenuPolicy(Qt.CustomContextMenu) self.labelList.customContextMenuRequested.connect( self.popLabelListMenu) # Store actions for further handling. self.actions = struct( save=save, saveAs=saveAs, open=open, close=close, lineColor=color1, fillColor=color2, create=create, delete=delete, edit=edit, copy=copy, undoLastPoint=undoLastPoint, createMode=createMode, editMode=editMode, advancedMode=advancedMode, shapeLineColor=shapeLineColor, shapeFillColor=shapeFillColor, zoom=zoom, zoomIn=zoomIn, zoomOut=zoomOut, zoomOrg=zoomOrg, fitWindow=fitWindow, fitWidth=fitWidth, zoomActions=zoomActions, fileMenuActions=(open, opendir, save, saveAs, close, quit), beginner=(), advanced=(), editMenu=(edit, copy, delete, None, undoLastPoint, None, color1, color2), beginnerContext=(create, edit, copy, delete, undoLastPoint), advancedContext=( createMode, editMode, edit, copy, delete, shapeLineColor, shapeFillColor, undoLastPoint, ), onLoadActive=(close, create, createMode, editMode), onShapesPresent=(saveAs, hideAll, showAll), ) self.menus = struct( file=self.menu('&File'), edit=self.menu('&Edit'), view=self.menu('&View'), help=self.menu('&Help'), recentFiles=QtWidgets.QMenu('Open &Recent'), labelList=labelMenu, ) addActions(self.menus.file, (open, opendir, self.menus.recentFiles, save, saveAs, close, None, quit)) addActions(self.menus.help, (help,)) addActions(self.menus.view, ( labels, advancedMode, None, hideAll, showAll, None, zoomIn, zoomOut, zoomOrg, None, fitWindow, fitWidth)) self.menus.file.aboutToShow.connect(self.updateFileMenu) # Custom context menu for the canvas widget: addActions(self.canvas.menus[0], self.actions.beginnerContext) addActions(self.canvas.menus[1], ( action('&Copy here', self.copyShape), action('&Move here', self.moveShape))) self.tools = self.toolbar('Tools') self.actions.beginner = ( open, opendir, openNextImg, openPrevImg, save, None, create, copy, delete, None, zoomIn, zoom, zoomOut, fitWindow, fitWidth) self.actions.advanced = ( open, opendir, openNextImg, openPrevImg, save, None, createMode, editMode, None, hideAll, showAll) self.statusBar().showMessage('%s started.' % __appname__) self.statusBar().show() # Application state. self.image = QtGui.QImage() self.imagePath = None self.labeling_once = output is not None self.output = output self._store_data = store_data self.recentFiles = [] self.maxRecent = 7 self.lineColor = None self.fillColor = None self.zoom_level = 100 self.fit_window = False if filename is not None and os.path.isdir(filename): self.importDirImages(filename) else: self.filename = filename # XXX: Could be completely declarative. # Restore application settings. self.settings = {} self.recentFiles = self.settings.get('recentFiles', []) size = self.settings.get('window/size', QtCore.QSize(600, 500)) position = self.settings.get('window/position', QtCore.QPoint(0, 0)) self.resize(size) self.move(position) # or simply: # self.restoreGeometry(settings['window/geometry'] self.restoreState( self.settings.get('window/state', QtCore.QByteArray())) self.lineColor = QtGui.QColor( self.settings.get('line/color', Shape.line_color)) self.fillColor = QtGui.QColor( self.settings.get('fill/color', Shape.fill_color)) Shape.line_color = self.lineColor Shape.fill_color = self.fillColor if self.settings.get('advanced', QtCore.QVariant()): self.actions.advancedMode.setChecked(True) self.toggleAdvancedMode() # Populate the File menu dynamically. self.updateFileMenu() # Since loading the file may take some time, # make sure it runs in the background. if self.filename is not None: self.queueEvent(functools.partial(self.loadFile, self.filename)) # Callbacks: self.zoomWidget.valueChanged.connect(self.paintCanvas) self.populateModeActions() # self.firstStart = True # if self.firstStart: # QWhatsThis.enterWhatsThisMode() # Support Functions def noShapes(self): return not self.itemsToShapes def toggleAdvancedMode(self, value=True): self._beginner = not value self.canvas.setEditing(True) self.populateModeActions() self.editButton.setVisible(not value) if value: self.actions.createMode.setEnabled(True) self.actions.editMode.setEnabled(False) self.dock.setFeatures(self.dock.features() | self.dockFeatures) else: self.dock.setFeatures(self.dock.features() ^ self.dockFeatures) def populateModeActions(self): if self.beginner(): tool, menu = self.actions.beginner, self.actions.beginnerContext else: tool, menu = self.actions.advanced, self.actions.advancedContext self.tools.clear() addActions(self.tools, tool) self.canvas.menus[0].clear() addActions(self.canvas.menus[0], menu) self.menus.edit.clear() actions = (self.actions.create,) if self.beginner() else \ (self.actions.createMode, self.actions.editMode) addActions(self.menus.edit, actions + self.actions.editMenu) def setBeginner(self): self.tools.clear() addActions(self.tools, self.actions.beginner) def setAdvanced(self): self.tools.clear() addActions(self.tools, self.actions.advanced) def setDirty(self): self.dirty = True self.actions.save.setEnabled(True) title = __appname__ if self.filename is not None: title = '{} - {}*'.format(title, self.filename) self.setWindowTitle(title) def setClean(self): self.dirty = False self.actions.save.setEnabled(False) self.actions.create.setEnabled(True) title = __appname__ if self.filename is not None: title = '{} - {}'.format(title, self.filename) self.setWindowTitle(title) def toggleActions(self, value=True): """Enable/Disable widgets which depend on an opened image.""" for z in self.actions.zoomActions: z.setEnabled(value) for action in self.actions.onLoadActive: action.setEnabled(value) def queueEvent(self, function): QtCore.QTimer.singleShot(0, function) def status(self, message, delay=5000): self.statusBar().showMessage(message, delay) def resetState(self): self.itemsToShapes = [] self.labelList.clear() self.filename = None self.imageData = None self.labelFile = None self.canvas.resetState() def currentItem(self): items = self.labelList.selectedItems() if items: return items[0] return None def addRecentFile(self, filename): if filename in self.recentFiles: self.recentFiles.remove(filename) elif len(self.recentFiles) >= self.maxRecent: self.recentFiles.pop() self.recentFiles.insert(0, filename) def beginner(self): return self._beginner def advanced(self): return not self.beginner() # Callbacks def tutorial(self): subprocess.Popen([self.screencastViewer, self.screencast]) def createShape(self): assert self.beginner() self.canvas.setEditing(False) self.actions.create.setEnabled(False) def toggleDrawingSensitive(self, drawing=True): """Toggle drawing sensitive. In the middle of drawing, toggling between modes should be disabled. """ self.actions.editMode.setEnabled(not drawing) self.actions.undoLastPoint.setEnabled(drawing) if not drawing and self.beginner(): # Cancel creation. self.canvas.setEditing(True) self.canvas.restoreCursor() self.actions.create.setEnabled(True) def toggleDrawMode(self, edit=True): self.canvas.setEditing(edit) self.actions.createMode.setEnabled(edit) self.actions.editMode.setEnabled(not edit) def setCreateMode(self): assert self.advanced() self.toggleDrawMode(False) def setEditMode(self): assert self.advanced() self.toggleDrawMode(True) def updateFileMenu(self): current = self.filename def exists(filename): return os.path.exists(str(filename)) menu = self.menus.recentFiles menu.clear() files = [f for f in self.recentFiles if f != current and exists(f)] for i, f in enumerate(files): icon = newIcon('labels') action = QtWidgets.QAction( icon, '&%d %s' % (i + 1, QtCore.QFileInfo(f).fileName()), self) action.triggered.connect(functools.partial(self.loadRecent, f)) menu.addAction(action) def popLabelListMenu(self, point): self.menus.labelList.exec_(self.labelList.mapToGlobal(point)) def editLabel(self, item=None): if not self.canvas.editing(): return item = item if item else self.currentItem() text = self.labelDialog.popUp(item.text()) if text is None: return item.setText(text) self.setDirty() if not self.uniqLabelList.findItems(text, Qt.MatchExactly): self.uniqLabelList.addItem(text) self.uniqLabelList.sortItems() def fileSelectionChanged(self): items = self.fileListWidget.selectedItems() if not items: return item = items[0] if not self.mayContinue(): return currIndex = self.imageList.index(str(item.text())) if currIndex < len(self.imageList): filename = self.imageList[currIndex] if filename: self.loadFile(filename) # React to canvas signals. def shapeSelectionChanged(self, selected=False): if self._noSelectionSlot: self._noSelectionSlot = False else: shape = self.canvas.selectedShape if shape: index = self._find_item_from_shape(shape) item, _ = self.itemsToShapes[index] item.setSelected(True) else: self.labelList.clearSelection() self.actions.delete.setEnabled(selected) self.actions.copy.setEnabled(selected) self.actions.edit.setEnabled(selected) self.actions.shapeLineColor.setEnabled(selected) self.actions.shapeFillColor.setEnabled(selected) def addLabel(self, shape): item = QtWidgets.QListWidgetItem(shape.label) item.setFlags(item.flags() | Qt.ItemIsUserCheckable) item.setCheckState(Qt.Checked) self.itemsToShapes.append((item, shape)) self.labelList.addItem(item) if not self.uniqLabelList.findItems(shape.label, Qt.MatchExactly): self.uniqLabelList.addItem(shape.label) self.uniqLabelList.sortItems() self.labelDialog.addLabelHistory(item.text()) for action in self.actions.onShapesPresent: action.setEnabled(True) def _find_item_from_shape(self, shape): for index, (item, shape_) in enumerate(self.itemsToShapes): if shape_ == shape: return index def _find_shape_from_item(self, item): for index, (item_, shape) in enumerate(self.itemsToShapes): if item_ == item: return index def remLabel(self, shape): index = self._find_item_from_shape(shape) item, _ = self.itemsToShapes.pop(index) self.labelList.takeItem(self.labelList.row(item)) def loadLabels(self, shapes): s = [] for label, points, line_color, fill_color in shapes: shape = Shape(label=label) for x, y in points: shape.addPoint(QtCore.QPointF(x, y)) shape.close() s.append(shape) self.addLabel(shape) if line_color: shape.line_color = QtGui.QColor(*line_color) if fill_color: shape.fill_color = QtGui.QColor(*fill_color) self.canvas.loadShapes(s) def saveLabels(self, filename): lf = LabelFile() def format_shape(s): return dict(label=str(s.label), line_color=s.line_color.getRgb() if s.line_color != self.lineColor else None, fill_color=s.fill_color.getRgb() if s.fill_color != self.fillColor else None, points=[(p.x(), p.y()) for p in s.points]) shapes = [format_shape(shape) for shape in self.canvas.shapes] try: imagePath = os.path.relpath( self.imagePath, os.path.dirname(filename)) imageData = self.imageData if self._store_data else None lf.save(filename, shapes, imagePath, imageData, self.lineColor.getRgb(), self.fillColor.getRgb()) self.labelFile = lf # disable allows next and previous image to proceed # self.filename = filename return True except LabelFileError as e: self.errorMessage('Error saving label data', '%s' % e) return False def copySelectedShape(self): self.addLabel(self.canvas.copySelectedShape()) # fix copy and delete self.shapeSelectionChanged(True) def labelSelectionChanged(self): item = self.currentItem() if item and self.canvas.editing(): self._noSelectionSlot = True index = self._find_shape_from_item(item) _, shape = self.itemsToShapes[index] self.canvas.selectShape(shape) def labelItemChanged(self, item): index = self._find_shape_from_item(item) _, shape = self.itemsToShapes[index] label = str(item.text()) if label != shape.label: shape.label = str(item.text()) self.setDirty() else: # User probably changed item visibility self.canvas.setShapeVisible(shape, item.checkState() == Qt.Checked) # Callback functions: def newShape(self): """Pop-up and give focus to the label editor. position MUST be in global coordinates. """ items = self.uniqLabelList.selectedItems() text = None if items: text = items[0].text() text = self.labelDialog.popUp(text) if text is not None: self.addLabel(self.canvas.setLastLabel(text)) if self.beginner(): # Switch to edit mode. self.canvas.setEditing(True) self.actions.create.setEnabled(True) else: self.actions.editMode.setEnabled(True) self.setDirty() else: self.canvas.undoLastLine() def scrollRequest(self, delta, orientation): units = - delta * 0.1 # natural scroll bar = self.scrollBars[orientation] bar.setValue(bar.value() + bar.singleStep() * units) def setZoom(self, value): self.actions.fitWidth.setChecked(False) self.actions.fitWindow.setChecked(False) self.zoomMode = self.MANUAL_ZOOM self.zoomWidget.setValue(value) def addZoom(self, increment=10): self.setZoom(self.zoomWidget.value() + increment) def zoomRequest(self, delta): units = delta * 0.1 self.addZoom(units) def setFitWindow(self, value=True): if value: self.actions.fitWidth.setChecked(False) self.zoomMode = self.FIT_WINDOW if value else self.MANUAL_ZOOM self.adjustScale() def setFitWidth(self, value=True): if value: self.actions.fitWindow.setChecked(False) self.zoomMode = self.FIT_WIDTH if value else self.MANUAL_ZOOM self.adjustScale() def togglePolygons(self, value): for item, shape in self.itemsToShapes: item.setCheckState(Qt.Checked if value else Qt.Unchecked) def loadFile(self, filename=None): """Load the specified file, or the last opened file if None.""" self.resetState() self.canvas.setEnabled(False) if filename is None: filename = self.settings.get('filename', '') filename = str(filename) if not QtCore.QFile.exists(filename): self.errorMessage( 'Error opening file', 'No such file: %s' % filename) return False # assumes same name, but json extension self.status("Loading %s..." % os.path.basename(str(filename))) label_file = os.path.splitext(filename)[0] + '.json' if QtCore.QFile.exists(label_file) and \ LabelFile.isLabelFile(label_file): try: self.labelFile = LabelFile(label_file) # FIXME: PyQt4 installed via Anaconda fails to load JPEG # and JSON encoded images. # https://github.com/ContinuumIO/anaconda-issues/issues/131 if QtGui.QImage.fromData(self.labelFile.imageData).isNull(): raise LabelFileError( 'Failed loading image data from label file.\n' 'Maybe this is a known issue of PyQt4 built on' ' Anaconda, and may be fixed by installing PyQt5.') except LabelFileError as e: self.errorMessage( 'Error opening file', "

%s

" "

Make sure %s is a valid label file." % (e, label_file)) self.status("Error reading %s" % label_file) return False self.imageData = self.labelFile.imageData self.imagePath = os.path.join(os.path.dirname(label_file), self.labelFile.imagePath) self.lineColor = QtGui.QColor(*self.labelFile.lineColor) self.fillColor = QtGui.QColor(*self.labelFile.fillColor) else: # Load image: # read data first and store for saving into label file. self.imageData = read(filename, None) if self.imageData is not None: # the filename is image not JSON self.imagePath = filename self.labelFile = None image = QtGui.QImage.fromData(self.imageData) if image.isNull(): formats = ['*.{}'.format(fmt.data().decode()) for fmt in QtGui.QImageReader.supportedImageFormats()] self.errorMessage( 'Error opening file', '

Make sure {0} is a valid image file.
' 'Supported image formats: {1}

' .format(filename, ','.join(formats))) self.status("Error reading %s" % filename) return False self.image = image self.filename = filename self.canvas.loadPixmap(QtGui.QPixmap.fromImage(image)) if self.labelFile: self.loadLabels(self.labelFile.shapes) self.setClean() self.canvas.setEnabled(True) self.adjustScale(initial=True) self.paintCanvas() self.addRecentFile(self.filename) self.toggleActions(True) self.status("Loaded %s" % os.path.basename(str(filename))) if filename in self.imageList: self.fileListWidget.setCurrentRow(self.imageList.index(filename)) return True def resizeEvent(self, event): if self.canvas and not self.image.isNull()\ and self.zoomMode != self.MANUAL_ZOOM: self.adjustScale() super(MainWindow, self).resizeEvent(event) def paintCanvas(self): assert not self.image.isNull(), "cannot paint null image" self.canvas.scale = 0.01 * self.zoomWidget.value() self.canvas.adjustSize() self.canvas.update() def adjustScale(self, initial=False): value = self.scalers[self.FIT_WINDOW if initial else self.zoomMode]() self.zoomWidget.setValue(int(100 * value)) def scaleFitWindow(self): """Figure out the size of the pixmap to fit the main widget.""" e = 2.0 # So that no scrollbars are generated. w1 = self.centralWidget().width() - e h1 = self.centralWidget().height() - e a1 = w1 / h1 # Calculate a new scale value based on the pixmap's aspect ratio. w2 = self.canvas.pixmap.width() - 0.0 h2 = self.canvas.pixmap.height() - 0.0 a2 = w2 / h2 return w1 / w2 if a2 >= a1 else h1 / h2 def scaleFitWidth(self): # The epsilon does not seem to work too well here. w = self.centralWidget().width() - 2.0 return w / self.canvas.pixmap.width() def closeEvent(self, event): if not self.mayContinue(): event.ignore() s = self.settings s['filename'] = self.filename if self.filename else '' s['window/size'] = self.size() s['window/position'] = self.pos() s['window/state'] = self.saveState() s['line/color'] = self.lineColor s['fill/color'] = self.fillColor s['recentFiles'] = self.recentFiles s['advanced'] = not self._beginner # ask the use for where to save the labels # s['window/geometry'] = self.saveGeometry() # User Dialogs # def loadRecent(self, filename): if self.mayContinue(): self.loadFile(filename) def openPrevImg(self, _value=False): if not self.mayContinue(): return if len(self.imageList) <= 0: return if self.filename is None: return currIndex = self.imageList.index(self.filename) if currIndex - 1 >= 0: filename = self.imageList[currIndex - 1] if filename: self.loadFile(filename) def openNextImg(self, _value=False): if not self.mayContinue(): return if len(self.imageList) <= 0: return filename = None if self.filename is None: filename = self.imageList[0] else: currIndex = self.imageList.index(self.filename) if currIndex + 1 < len(self.imageList): filename = self.imageList[currIndex + 1] if filename: self.loadFile(filename) def openFile(self, _value=False): if not self.mayContinue(): return path = os.path.dirname(str(self.filename)) if self.filename else '.' formats = ['*.{}'.format(fmt.data().decode()) for fmt in QtGui.QImageReader.supportedImageFormats()] filters = "Image & Label files (%s)" % ' '.join( formats + ['*%s' % LabelFile.suffix]) filename = QtWidgets.QFileDialog.getOpenFileName( self, '%s - Choose Image or Label file' % __appname__, path, filters) if PYQT5: filename, _ = filename filename = str(filename) if filename: self.loadFile(filename) def saveFile(self, _value=False): assert not self.image.isNull(), "cannot save empty image" if self.hasLabels(): if self.labelFile: # DL20180323 - overwrite when in directory self._saveFile(self.labelFile.filename) elif self.output: self._saveFile(self.output) else: self._saveFile(self.saveFileDialog()) def saveFileAs(self, _value=False): assert not self.image.isNull(), "cannot save empty image" if self.hasLabels(): self._saveFile(self.saveFileDialog()) def saveFileDialog(self): caption = '%s - Choose File' % __appname__ filters = 'Label files (*%s)' % LabelFile.suffix dlg = QtWidgets.QFileDialog(self, caption, self.currentPath(), filters) dlg.setDefaultSuffix(LabelFile.suffix[1:]) dlg.setAcceptMode(QtWidgets.QFileDialog.AcceptSave) dlg.setOption(QtWidgets.QFileDialog.DontConfirmOverwrite, False) dlg.setOption(QtWidgets.QFileDialog.DontUseNativeDialog, False) basename = os.path.splitext(self.filename)[0] default_labelfile_name = os.path.join( self.currentPath(), basename + LabelFile.suffix) filename = dlg.getSaveFileName( self, 'Choose File', default_labelfile_name, 'Label files (*%s)' % LabelFile.suffix) if PYQT5: filename, _ = filename filename = str(filename) return filename def _saveFile(self, filename): if filename and self.saveLabels(filename): self.addRecentFile(filename) self.setClean() if self.labeling_once: self.close() def closeFile(self, _value=False): if not self.mayContinue(): return self.resetState() self.setClean() self.toggleActions(False) self.canvas.setEnabled(False) self.actions.saveAs.setEnabled(False) # Message Dialogs. # def hasLabels(self): if not self.itemsToShapes: self.errorMessage( 'No objects labeled', 'You must label at least one object to save the file.') return False return True def mayContinue(self): if not self.dirty: return True mb = QtWidgets.QMessageBox msg = 'Save annotations to "{}" before closing?'.format(self.filename) answer = mb.question(self, 'Save annotations?', msg, mb.Save | mb.Discard | mb.Cancel, mb.Save) if answer == mb.Discard: return True elif answer == mb.Save: self.saveFile() return True else: # answer == mb.Cancel return False def errorMessage(self, title, message): return QtWidgets.QMessageBox.critical( self, title, '

%s

%s' % (title, message)) def currentPath(self): return os.path.dirname(str(self.filename)) if self.filename else '.' def chooseColor1(self): color = self.colorDialog.getColor( self.lineColor, 'Choose line color', default=DEFAULT_LINE_COLOR) if color: self.lineColor = color # Change the color for all shape lines: Shape.line_color = self.lineColor self.canvas.update() self.setDirty() def chooseColor2(self): color = self.colorDialog.getColor( self.fillColor, 'Choose fill color', default=DEFAULT_FILL_COLOR) if color: self.fillColor = color Shape.fill_color = self.fillColor self.canvas.update() self.setDirty() def deleteSelectedShape(self): yes, no = QtWidgets.QMessageBox.Yes, QtWidgets.QMessageBox.No msg = 'You are about to permanently delete this polygon, ' \ 'proceed anyway?' if yes == QtWidgets.QMessageBox.warning(self, 'Attention', msg, yes | no): self.remLabel(self.canvas.deleteSelected()) self.setDirty() if self.noShapes(): for action in self.actions.onShapesPresent: action.setEnabled(False) def chshapeLineColor(self): color = self.colorDialog.getColor( self.lineColor, 'Choose line color', default=DEFAULT_LINE_COLOR) if color: self.canvas.selectedShape.line_color = color self.canvas.update() self.setDirty() def chshapeFillColor(self): color = self.colorDialog.getColor( self.fillColor, 'Choose fill color', default=DEFAULT_FILL_COLOR) if color: self.canvas.selectedShape.fill_color = color self.canvas.update() self.setDirty() def copyShape(self): self.canvas.endMove(copy=True) self.addLabel(self.canvas.selectedShape) self.setDirty() def moveShape(self): self.canvas.endMove(copy=False) self.setDirty() def openDirDialog(self, _value=False, dirpath=None): if not self.mayContinue(): return defaultOpenDirPath = dirpath if dirpath else '.' if self.lastOpenDir and os.path.exists(self.lastOpenDir): defaultOpenDirPath = self.lastOpenDir else: defaultOpenDirPath = os.path.dirname(self.filename) \ if self.filename else '.' targetDirPath = str(QtWidgets.QFileDialog.getExistingDirectory( self, '%s - Open Directory' % __appname__, defaultOpenDirPath, QtWidgets.QFileDialog.ShowDirsOnly | QtWidgets.QFileDialog.DontResolveSymlinks)) self.importDirImages(targetDirPath) @property def imageList(self): lst = [] for i in range(self.fileListWidget.count()): item = self.fileListWidget.item(i) lst.append(item.text()) return lst def importDirImages(self, dirpath): if not self.mayContinue() or not dirpath: return self.lastOpenDir = dirpath self.filename = None self.fileListWidget.clear() for imgPath in self.scanAllImages(dirpath): item = QtWidgets.QListWidgetItem(imgPath) self.fileListWidget.addItem(item) self.openNextImg() def scanAllImages(self, folderPath): extensions = ['.%s' % fmt.data().decode("ascii").lower() for fmt in QtGui.QImageReader.supportedImageFormats()] images = [] for root, dirs, files in os.walk(folderPath): for file in files: if file.lower().endswith(tuple(extensions)): relativePath = os.path.join(root, file) images.append(relativePath) images.sort(key=lambda x: x.lower()) return images class Settings(object): """Convenience dict-like wrapper around QSettings.""" def __init__(self, types=None): self.data = QtCore.QSettings() self.types = collections.defaultdict( lambda: QtCore.QVariant, types if types else {}) def __setitem__(self, key, value): t = self.types[key] self.data.setValue( key, t(value) if not isinstance(value, t) else value) def __getitem__(self, key): return self._cast(key, self.data.value(key)) def get(self, key, default=None): return self._cast(key, self.data.value(key, default)) def _cast(self, key, value): # XXX: Very nasty way of converting types to QVariant methods :P t = self.types[key] if t != QtCore.QVariant: method = getattr(QtCore.QVariant, re.sub('^Q', 'to', t.__name__, count=1)) return method(value) return value def inverted(color): return QtGui.QColor(*[255 - v for v in color.getRgb()]) def read(filename, default=None): try: with open(filename, 'rb') as f: return f.read() except Exception: return default def main(): """Standard boilerplate Qt application code.""" parser = argparse.ArgumentParser() parser.add_argument('filename', nargs='?', help='image or label filename') parser.add_argument('--output', '-O', '-o', help='output label name') parser.add_argument('--nodata', dest='store_data', action='store_false', help='stop storing image data to JSON file') parser.add_argument('--labels', help='comma separated list of labels OR file ' 'containing one label per line') parser.add_argument('--nosortlabels', dest='sort_labels', action='store_false', help='stop sorting labels') args = parser.parse_args() if args.labels is not None: if os.path.isfile(args.labels): args.labels = [l.strip() for l in open(args.labels, 'r') if l.strip()] else: args.labels = [l for l in args.labels.split(',') if l] app = QtWidgets.QApplication(sys.argv) app.setApplicationName(__appname__) app.setWindowIcon(newIcon("app")) win = MainWindow( filename=args.filename, output=args.output, store_data=args.store_data, labels=args.labels, sort_labels=args.sort_labels, ) win.show() win.raise_() sys.exit(app.exec_())