本文整理汇总了Python中silx.gui.plot.PlotWidget.getImage方法的典型用法代码示例。如果您正苦于以下问题：Python PlotWidget.getImage方法的具体用法？Python PlotWidget.getImage怎么用？Python PlotWidget.getImage使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类silx.gui.plot.PlotWidget的用法示例。
在下文中一共展示了PlotWidget.getImage方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: TestNamedImageAlphaSlider
# 需要导入模块: from silx.gui.plot import PlotWidget [as 别名]
# 或者: from silx.gui.plot.PlotWidget import getImage [as 别名]
class TestNamedImageAlphaSlider(TestCaseQt):
def setUp(self):
super(TestNamedImageAlphaSlider, self).setUp()
self.plot = PlotWidget()
self.aslider = AlphaSlider.NamedImageAlphaSlider(plot=self.plot)
self.aslider.setOrientation(qt.Qt.Horizontal)
toolbar = qt.QToolBar("plot", self.plot)
toolbar.addWidget(self.aslider)
self.plot.addToolBar(toolbar)
self.plot.show()
self.qWaitForWindowExposed(self.plot)
self.mouseMove(self.plot) # Move to center
self.qapp.processEvents()
def tearDown(self):
self.qapp.processEvents()
self.plot.setAttribute(qt.Qt.WA_DeleteOnClose)
self.plot.close()
del self.plot
del self.aslider
super(TestNamedImageAlphaSlider, self).tearDown()
def testWidgetEnabled(self):
# no image set initially, slider must be deactivate
self.assertFalse(self.aslider.isEnabled())
self.plot.addImage(numpy.array([[0, 1, 2], [3, 4, 5]]), legend="1")
self.aslider.setLegend("1")
# now we have an image set
self.assertTrue(self.aslider.isEnabled())
def testGetImage(self):
self.plot.addImage(numpy.array([[0, 1, 2], [3, 4, 5]]), legend="1")
self.plot.addImage(numpy.array([[0, 1, 3], [2, 4, 6]]), legend="2")
self.aslider.setLegend("1")
self.assertEqual(self.plot.getImage("1"),
self.aslider.getItem())
self.aslider.setLegend("2")
self.assertEqual(self.plot.getImage("2"),
self.aslider.getItem())
def testGetAlpha(self):
self.plot.addImage(numpy.array([[0, 1, 2], [3, 4, 5]]), legend="1")
self.aslider.setLegend("1")
self.aslider.setValue(128)
self.assertAlmostEqual(self.aslider.getAlpha(),
128. / 255)示例2: SilxMaskImageWidget
# 需要导入模块: from silx.gui.plot import PlotWidget [as 别名]
# 或者: from silx.gui.plot.PlotWidget import getImage [as 别名]
#.........这里部分代码省略.........
self._getMaskToolsDockWidget().sigMaskChanged.connect(
self._emitMaskImageWidgetSignal)
return ret
def getSelectionMask(self, copy=True):
"""Get the current mask as a 2D array.
:param bool copy: True (default) to get a copy of the mask.
If False, the returned array MUST not be modified.
:return: The array of the mask with dimension of the 'active' image.
If there is no active image, None is returned.
:rtype: 2D numpy.ndarray of uint8
"""
return self._getMaskToolsDockWidget().getSelectionMask(copy=copy)
@staticmethod
def _RgbaToGrayscale(image):
"""Convert RGBA image to 2D array of grayscale values
(Luma coding)
:param image: RGBA image, as a numpy array of shapes
(nrows, ncols, 3/4)
:return: Image as a 2D array
"""
if len(image.shape) == 2:
return image
assert len(image.shape) == 3
imageData = image[:, :, 0] * 0.299 +\
image[:, :, 1] * 0.587 +\
image[:, :, 2] * 0.114
return imageData
def getImageData(self):
"""Return current image data to be sent to RGB correlator
:return: Image as a 2D array
"""
index = self.slider.value()
image = self._images[index]
return self._RgbaToGrayscale(image)
def getFirstBgImageData(self):
"""Return first bg image data to be sent to RGB correlator
:return: Image as a 2D array
"""
image = self._bg_images[0]
return self._RgbaToGrayscale(image)
def getBgImagesDict(self):
"""Return a dict containing the data for all background images."""
bgimages = {}
for i, label in enumerate(self._bg_labels):
data = self._bg_images[i]
origin = self._bg_origins[i]
delta_w, delta_h = self._bg_deltaXY[i]
w, h = delta_w * data.shape[1], delta_h * data.shape[0]
bgimages[label] = {"data": data,
"origin": origin,
"width": w,
"height": h}
return bgimages
def _addImageClicked(self):
imageData = self.getImageData()
ddict = {