Hi Marc, hope all is well with you there.
I had a chat with Marc W' and he suggested putting a comment into here.
When displaying a camera image in an itom2DGVFigure, the pixel intensity is auto-scaled depending on the minimum/maximum value within the image matrix. If the matrix values are divided by two, one would normally expect (for a camera image anyway) for the image to be "half as bright" across the whole image. But with the auto-scaling in place, this can't occur. Would it be possible to add in some parameters within the QT Designer's Itom plugin, that could be accessed from Python. Then I can attach a value box, or a slider etc. to allow a user to adjust image contrast/brightness etc. that would manipulate the viewed plot... Visualization, adjusting contrast/brightness is very important for the camera work we do, as from a biological point of view, cells can be VERY hard to image on some microscopes (those without phase contrast etc.).
All the best from here in 'wet/cold/windy!' Wales