visiannot.visiannot.components.VideoWidget¶

Summary¶

Module defining VideoWidget

Subclass of pyqtgraph.PlotWidget for displaying a video

class visiannot.visiannot.components.VideoWidget.VideoWidget(visi_lay, widget_position, *args, **kwargs)[source]¶

Bases: pyqtgraph.widgets.PlotWidget.PlotWidget

Subclass of pyqtgraph.PlotWidget for displaying a video

The video data is not provided in the constructor, but with the method setImage(), then the method displayImage() displays the current frame. The method setAndDisplayImage() combines both.

Parameters

visi_lay (PyQt5.QtWidgets.QGridLayout) – layout of the associated instance of ViSiAnnoT
widget_position (tuple or list) – position of the widget in the layout of the associated instance of ViSiAnnoT
args – positional arguments of the method setWidgetTitle()
kwargs – keyword arguments of the method setWidgetTitle()

Methods:

`displayImage`()	Displays the current frame stored in `image`
`setAndDisplayImage`(*args)	Reads video at the specified frame and displays image
`setImage`(data_video, frame_id)	Reads video at the specified frame
`setWidgetTitle`(video_path, **kwargs)	Sets the widget title with the file name without extension of the video

Attributes:

`title`	(str) Name of the video file without extension
`previous_frame_id`	(int) Index of the previously read frame
`image`	(numpy array) Current frame image
`img_item`	(pyqtgraph.ImageItem) Displayed image item

displayImage()[source]¶

Displays the current frame stored in image

It sets the attribute img_item.

setAndDisplayImage(*args)[source]¶

Reads video at the specified frame and displays image

setImage(data_video, frame_id)[source]¶

Reads video at the specified frame

It sets the attributes previous_frame_id and image.

Parameters

Returns

code (0 success, 1 pause, 2 error)

Return type

int

setWidgetTitle(video_path, **kwargs)[source]¶

Sets the widget title with the file name without extension of the video

Parameters