PreviewCV

class lib.training.preview_cv.PreviewCV(preview_buffer: PreviewBuffer, triggers: dict[Literal['toggle_mask', 'refresh', 'save', 'quit', 'shutdown'], Event])

Bases: PreviewBase

Simple fall back preview viewer using OpenCV for when TKinter is not available

Parameters:

• preview_buffer (PreviewBuffer) – The thread safe object holding the preview images

• triggers (dict) – Dictionary of event triggers for pop-up preview.