capturing 12-bit with pylon_camera

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The code says that format is unsupported:

    ...
    else
    {
        /* Unsupported are:
         * - Mono10
         * - Mono10p
         * - Mono12
         * - Mono12p
         * - BayerGR10
         ...

There is an issue about it https://github.com/magazino/pylon_cam... .

It may not be very difficult to add support for 12 bit images yourself. There would probably need to be a new grab method in include/pylon_camera/internal/impl/pylon_camera_base.hpp alongside the 8-bit grabs() that are there now:

bool PylonCameraImpl<CameraTrait>::grab(std::vector<uint8_t>& image)

The Basler Pylon SDK examples may have some code that grabs 12-bit images.

12 bit images are usually re-encoded into 16 bit images- image_encodings.h lists rgb16, bgr16, and mono16 and others but no 12 bit types.

There may be issues with 16 bit image handling in image processing nodes and image viewers (like image_proc and rqt_image_view).

https://github.com/lucasw/image_manip... is an image format conversion nodelet that wraps opencv convertTo and cvtColor and is possibly useful here.