Issue when trying to get frame from camera with 'YUV422_8' pixel format

[alexgrabit]

Hi everybody,

The camera model I´m using is "Teledyne DALSA-Nano-C1280" and its available pixel formats are 'Mono8', 'BGR8', 'BGRA8', 'YUV422_8', 'YUV422_8_UYVY' and'YUV422Packed'.

I´m trying to get frames from the camera using a example script of this repository and setting pixel format of the camera to 'YUV422_8'. However, when I save the frame as a jpg or png file it seems to have a wrong format because it is completely gray (if I save it as .png) or completely white (if I save it as .jpg). If I use aravis viewer and I select 'YUV422_8' format, the viewer shows camera image correctly (in color).
Moreover, if I execute same python script setting pixel format to 'Mono8' it works fine and the image is correctly saves in grayscale.

Does anybody know why 'YUV422_8' pixel format is causing this issue?

Thanks in advance.