thanks for your reply,
No the video stream works well.
I don't know how to embed the histogram in the GUI. How can I call the plot
in my GUI as a separate window?
I know that the way that I ask the question may be strange and that is
because I am new in python. Thank you in advance.
On Tuesday, April 2, 2019 at 1:13:39 AM UTC+1, Patrick wrote:
>
> Hi,
>
> Oh, I see now you are plotting the histogram in a separate PlotWindow and
> the QLabel is just for the image.
>
> Your lines 46 and 90:
>
> self.mask = np.zeros((self.cameraHeight,self.cameraWidth),np.uint8)
>
> Shouldn't height and width be swapped around? I changed these to
>
> self.mask = np.zeros((self.cameraWidth,self.cameraHeight),np.uint8)
>
> and the code seemed to run OK (I did also fake the data acquired in the
> capture.read() as I don't have a webcam).
>
> Patrick
>
> On Tuesday, 2 April 2019 02:30:41 UTC+10:30, Iman Afrouzeh wrote:
>>
>> I am displaying the image in the function above in displayImage but I
>> cannot display my data in hist function inside my gui as graphicsview or
>> something else
>>
>> On Monday, April 1, 2019 at 3:53:44 PM UTC+1, Jim Crowell wrote:
>>>
>>> Do you just want to display the image, or have a plot on top of it? I
>>> use this utility function to set up both, with a histogram (only tested
>>> with PyQt5, 'pg' is of course pyqtgraph):
>>>
>>> To update the image data, you would later call
>>>
>>> widget.imageItem.setImage(...)
>>>
>>>
>>>
>>> def add_plot_image_histogram(widget, image_data, show_plot_axes=False,
>>> add_scale_buttons=False):
>>> """
>>> Add a PlotItem, attached ImageItem, and HistogramLUTWidget to a
>>> QWidget.
>>> (e.g. created in QTDesigner)
>>>
>>> The image is offset such that integer plot coordinates correspond
>>> to pixel centers rather than corners (which is the default).
>>>
>>> widget: a QWidget
>>> image_data: initial image data
>>> show_plot_axes: if False, hide all the plot axes. If True, show
>>> the default ('left' & 'bottom' are shown).
>>> add_scale_buttons: if True, add up- and down-triangle buttons to
>>> increase and decrease image color map limits and
>>> a square button for resetting them (see
>>> ImageItemUpdater).
>>>
>>> returns None
>>> """
>>>
>>> layout = QtGui.QGridLayout()
>>> widget.setLayout(layout)
>>> layout.setSpacing(0)
>>>
>>> widget.plotView = pg.GraphicsView()
>>> layout.addWidget(widget.plotView, 0, 0, 3, 1)
>>>
>>> widget.plotItem = pg.PlotItem()
>>> widget.plotItem.setAspectLocked()
>>> widget.plotItem.resize = widget.resize
>>> if not show_plot_axes:
>>> for axis in ('left','bottom','top','right'):
>>> widget.plotItem.showAxis(axis, False)
>>> widget.plotView.setCentralItem(widget.plotItem)
>>>
>>> widget.imageItem = pg.ImageItem(image=image_data)
>>> # to make plotted points _centered_ on corresponding image pixels
>>> widget.imageItem.translate(-.5,-.5)
>>> # put image _behind_ plot
>>> widget.imageItem.setZValue(-100)
>>> if add_scale_buttons:
>>> button_radius = 12 # pixels
>>> image_height = widget.imageItem.height()
>>>
>>> # 'up' button in upper-left corner
>>> widget.up_button = Button(button_radius, typ='tu', \
>>> parent=widget.imageItem)
>>> widget.up_button.setPos(0, 0.95*image_height)
>>>
>>> # 'down' button just below it
>>> widget.down_button = Button(button_radius, typ='td', \
>>> parent=widget.imageItem)
>>> widget.down_button.setPos(0, 0.80*image_height)
>>>
>>> # 'reset' (square) button in lower-left corner
>>> widget.reset_button = Button(button_radius, typ='s',
>>> parent=widget.imageItem)
>>>
>>> widget.plotItem.addItem(widget.imageItem)
>>>
>>> widget.histogramView = pg.GraphicsView()
>>>
>>>
>>>
>>>
>>> On Monday, April 1, 2019 at 7:35:26 AM UTC-4, Iman Afrouzeh wrote:
>>>>
>>>> Thank you very much for your response.
>>>> I have already done that but my problem is that I don't know how to
>>>> call the data in it in the python script.
>>>> I don't knwo what should I write instead if this:
>>>>
>>>> self.curve.setData(self.data)
>>>> self.l = (self.l+self.n)
>>>> self.line.setValue(self.bufferSize)
>>>>
>>>> ##########this is the place that I don't have any Idea to do
>>>>
>>>> I know it seems a silly question but I really couldn't find it with a
>>>> lot of searches.
>>>>
>>>> Thank you in advance for your help.
>>>>
>>>> On Monday, April 1, 2019 at 1:34:16 AM UTC+1, Patrick wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> Have you followed the instructions here?
>>>>> http://www.pyqtgraph.org/documentation/how_to_use.html#embedding-widgets-inside-pyqt-applications
>>>>>
>>>>> Change your existing imgLabel to a GraphicsView object and then
>>>>> promote it to a PlotWidget or GraphicsLayoutWidget as described there.
>>>>>
>>>>> Patrick
>>>>>
>>>>> On Saturday, 30 March 2019 02:10:55 UTC+10:30, Iman Afrouzeh wrote:
>>>>>>
>>>>>> Dear all,
>>>>>> I am new in Python and maybe it seems that this question has been
>>>>>> answered in other ways before but I could not figure it out after 2 days.
>>>>>> I have a qtgraph plot and I want to show it in a QLabel, Qwidget or
>>>>>> Graphicsview in a gui that I made in Qtdesigner but I can not find a
>>>>>> direct
>>>>>> way that shows that graph. I am streaming a video from a camera and I
>>>>>> could
>>>>>> easily show it in my GUI but I am struggling with this one.
>>>>>> Thank you in advance for your help and comments.
>>>>>>
>>>>>> the problem is in showing
>>>>>>
>>>>>
--
You received this message because you are subscribed to the Google Groups
"pyqtgraph" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/pyqtgraph/1722a35a-6d51-4180-a61d-5df45f47a1f2%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
