silx.gui.plot.actions.histogram

silx.gui.plot.actions.histogram provides actions relative to histograms for PlotWidget.

The following QAction are available:

class HistogramWidget(*args, **kwargs)[source]

Widget displaying a histogram and some statistic indicators

getPlotWidget()[source]

Returns PlotWidget use to display the histogram

resetZoom()[source]

Reset PlotWidget zoom

reset()[source]

Clear displayed information

getItem() → Optional[silx.gui.plot.items.core.Item][source]

Returns item used to display histogram and statistics.

setItem(item: Optional[silx.gui.plot.items.core.Item])[source]

Set item from which to display histogram and statistics.

Parameters:item –
setHistogram(histogram, edges)[source]

Set displayed histogram

Parameters:
  • histogram – Bin values (N)
  • edges – Bin edges (N+1)
getHistogram(copy: bool = True)[source]

Returns currently displayed histogram.

Parameters:copy – True to get a copy, False to get internal representation (Do not modify!)
Returns:(histogram, edges) or None
setStatistics(min_: Optional[float] = None, max_: Optional[float] = None, mean: Optional[float] = None, std: Optional[float] = None, sum_: Optional[float] = None)[source]

Set displayed statistic indicators.

class PixelIntensitiesHistoAction(plot, parent=None)[source]

QAction to plot the pixels intensities diagram

Parameters:
  • plot – PlotWidget instance on which to operate
  • parent – See QAction
getHistogramWidget()[source]

Returns the widget displaying the histogram

getHistogram() → Optional[numpy.ndarray][source]

Return the last computed histogram

Returns:the histogram displayed in the HistogramWidget