This version of ImageP now uses PyQtGraph instead of Matplotlib for displaying the image/frame of video. Matplotlib has an issue with quickly-changing imshow plots. PyQtGraph handles this much better. This gives a significant boost in data-processing of large video files.
Furthermore, a LUT (lookup-table) was added for the rgb/grayscale values so that the viewed image can be optimized for the best clicking experience! You will also find a rgb-to-grayscale converter box.
The imagep.py file is still about 500 lines long, so it is still a very small library. :)
You can find a screenshot of version 2.5 below:
Happy coding!