Hello,
Some recent bug fixes which were fixed in the master branch have been ported to the 4.5 branch of IPCV (based on OpenCV). Apart from the build of bundled OpenCV which has been improved, the new feature is the possibility of reading png/tiff images while keeping the alpha channel, e.g.
im = imread(fullpath(getIPCVpath()+"/images/baboon.png"));
imshow(im);
im = imread(fullpath(getIPCVpath()+"/images/puffin.png"),IMREAD_UNCHANGED=1);
imshow(im);
The new release has been numbered 4.5.0.1, and until we update the bundled OpenCV library, subsequent versions will be numbered 4.5.0.n.
Enjoy !
S.