Support for grayscale

[ashinmarin]

I have an onnx file trained with grayscale images and want to run the Detector Yolo3 script for it. But, its predictions are incorrect. So, I modified the script as follows, but unable to resolve all the bugs in the PhoneARCamera script.
Please help in this regard.
I have also changed the texture as TextureFormat.Alpha8.

[ashinmarin]

Converted all Pixels32 to Pixels, got all the bugs resolved, but still there is no detection.

[ashinmarin]

Gentle reminder for support.