def __init__(self, video, result):
self.video = video
self.result = result
app = pg.mkQApp()
self.win = pg.GraphicsWindow(title="Live webcam")
self.win.resize(640,480)
box = self.win.addViewBox(lockAspect=True)
box.invertY()
self.vis = pg.ImageItem()
box.addItem(self.vis)
box = self.win.addViewBox(lockAspect=True)
box.invertY()
self.res = pg.ImageItem()
box.addItem(self.res)
self.win.show()
self.lastUpdate = pg.ptime.time()
self.avgFps = 0.0
python类ImageItem()的实例源码
def __init__(self, data, title = None, color = 'viridis', ncolors = None):
#self.app = pg.QtGui.QApplication([])
#self.win = pg.GraphicsLayoutWidget()
#self.win.resize(1200, 800)
lut = colormap_lut(color, ncolors);
self.img = pg.ImageItem()
self.img.setLookupTable(lut)
self.img.setLevels([0,1])
#self.plot = self.win.addPlot()
self.plot = pg.plot(title = title);
self.plot.addItem(self.img)
#self.timer = QtCore.QTimer()
#self.timer.timeout.connect(self.check_for_new_data_and_replot)
#self.timer.start(100)
self.img.setImage(data.T)
#self.win.show()
def __init__(self, data, title = None, color = 'viridis', ncolors = None):
#self.app = pg.QtGui.QApplication([])
#self.win = pg.GraphicsLayoutWidget()
#self.win.resize(1200, 800)
lut = colormap_lut(color, ncolors);
self.img = pg.ImageItem()
self.img.setLookupTable(lut)
self.img.setLevels([0,1])
#self.plot = self.win.addPlot()
self.plot = pg.plot(title = title);
self.plot.addItem(self.img)
#self.timer = QtCore.QTimer()
#self.timer.timeout.connect(self.check_for_new_data_and_replot)
#self.timer.start(100)
self.img.setImage(data.T)
#self.win.show()
def __init__(self, parent=None):
#pyqtgraph.setConfigOptions(imageAxisOrder='row-major')
super(self.__class__, self).__init__()
self.setupUi(self)
self.slider_spatialr.valueChanged.connect(self.runSegment)
self.slider_ranger.valueChanged.connect(self.runSegment)
self.slider_classes.valueChanged.connect(self.runClassification)
self.imageItem = pyqtgraph.ImageItem()
self.view = pyqtgraph.ViewBox()
self.view.addItem(self.imageItem)
#segResult is of class pyqtgraph.GraphicsView
self.segResult.setCentralItem(self.view)
#get file pathes with buttons
self.RGBimgpathButton.clicked.connect(self.getFileRGB)
self.smoothedpathButton.clicked.connect(self.getFilesmoothed)
self.saveClassificationButton.clicked.connect(self.saveFileClassified)
#temporary data of segmented image
self.segmentedout = "data/app_segmented.tif"
self.RGBimgpath = "data/test_image_cubic_resample.tif"
self.smoothedpath = "data/smoothed.tif"
def update_display(self):
#self.log.debug('update_display')
if self.initial_scan_setup_plotting:
if self.settings['show_previous_scans']:
self.img_item = pg.ImageItem()
self.img_items.append(self.img_item)
self.img_plot.addItem(self.img_item)
self.hist_lut.setImageItem(self.img_item)
self.img_item.setImage(self.display_image_map[0,:,:])
x0, x1, y0, y1 = self.imshow_extent
self.log.debug('update_display set bounds {} {} {} {}'.format(x0, x1, y0, y1))
self.img_item_rect = QtCore.QRectF(x0, y0, x1-x0, y1-y0)
self.img_item.setRect(self.img_item_rect)
self.log.debug('update_display set bounds {}'.format(self.img_item_rect))
self.initial_scan_setup_plotting = False
else:
#if self.settings.scan_type.val in ['raster']
kk, jj, ii = self.current_scan_index
self.disp_img = self.display_image_map[kk,:,:].T
self.img_item.setImage(self.disp_img, autoRange=False, autoLevels=False)
self.img_item.setRect(self.img_item_rect) # Important to set rectangle after setImage for non-square pixels
self.update_LUT()
def __init__(self, func):
self.func = func
app = pg.mkQApp()
self.win = pg.GraphicsWindow(title="Bar learning")
self.win.resize(800,800)
self.win.addLabel("Input")
self.win.addLabel("Feature")
self.win.nextRow()
box = self.win.addViewBox(lockAspect=True)
self.input_vis = pg.ImageItem()
box.addItem(self.input_vis)
box = self.win.addViewBox(lockAspect=True)
self.feature_vis = pg.ImageItem()
box.addItem(self.feature_vis)
self.win.nextRow()
self.win.addLabel("Receptive fields", colspan=2)
self.win.nextRow()
box = self.win.addViewBox(lockAspect=True, colspan=2)
self.rv_vis = pg.ImageItem()
box.addItem(self.rv_vis)
self.win.show()
def __init__(self):
self._backgroundImage = "../roadlanes.png"
self._roadLength = 5e4
self._roadWidth = self._roadLength * 663./1657
self._laneWidth = self._roadWidth / 4.
self._trafficManager = None
self._pw = pg.plot(pen='y', symbol='t', symbolSize=200)
x = Image.open('../roadlanes.png')
im = np.array(x)
self._backgroundImage = pg.ImageItem(im, autoDownsample = True, autoLevels = False)
def __init__(self, sandbox, component, title='Untitled'):
pg.PlotItem.__init__(self)
self.title = title
self.sandbox = sandbox
self.component = component
self.cursor = CursorRect()
self.addCursor()
self.setAspectLocked(True)
self.setLabels(
bottom=('Easting', 'm'),
left=('Northing', 'm'))
self.image = pg.ImageItem(
None,
autoDownsample=False,
useOpenGL=True)
self.addItem(self.image)
self.title_label = pg.LabelItem(
text='<span style="color: #9E9E9E;">'
'%s</span>' % self.title,
justify='right', size='10pt',
parent=self)
self.title_label.anchor(
itemPos=(0., 0.),
parentPos=(.01, .01))
self.title_label.setOpacity(.6)
self.sandbox.sigModelUpdated.connect(
self.update)
self.sandbox.sources.modelAboutToBeReset.connect(
self.removeSourceROIS)
self.sandbox.sources.modelReset.connect(
self.addSourceROIS)
self.update()
self.rois = []
self.addSourceROIS()
def __init__(self, model, los_arrow=False):
pg.PlotWidget.__init__(self)
self.model = model
self.draw_time = 0.
self._data = None
border_pen = pg.mkPen(255, 255, 255, 50)
self.image = pg.ImageItem(
None,
autoDownsample=False,
border=border_pen,
useOpenGL=True)
self.setAspectLocked(True)
self.plotItem.getAxis('left').setZValue(100)
self.plotItem.getAxis('bottom').setZValue(100)
self.setLabels(
bottom=('Easting', 'm'),
left=('Northing', 'm'))
self.hint = {
'east': 0.,
'north': 0.,
'value': num.nan,
'measure': self.component.title(),
'vlength': '03',
'precision': '3',
}
self.hint_text = pg.LabelItem(
text='',
justify='right', size='8pt',
parent=self.plotItem)
self.hint_text.anchor(
itemPos=(1., 0.),
parentPos=(1., 0.))
self.hint_text.text_template =\
'<span style="font-family: monospace; color: #fff;'\
'background-color: #000;">'\
'East {east:08.2f} m | North {north:08.2f} m | '\
'{measure} {value:{length}.{precision}f}</span>'
self.hint_text.setOpacity(.6)
self.addItem(self.image)
self.update()
self.transFromFrame()
self._move_sig = pg.SignalProxy(
self.image.scene().sigMouseMoved,
rateLimit=25, slot=self.mouseMoved)
if los_arrow:
self.addLOSArrow()
# self.addIsocurve()
# self.scalebar()
