There has border on image using rotate

[Heegreis]

Hi, i try the example: https://colab.research.google.com/github/joheras/CLoDSA/blob/master/notebooks/CLODSA_Instance_Segmentation.ipynb

The output image using rotate has border.
I know that is background, but the input image size is 128*128.
So it should not has border after rotate 180 degree.

Is it a bug?

[joheras]

Hi, thanks for reporting this.
It seems that it is an issue related to how rotation is performed in OpenCV, I will further investigate it.
Best,
Jónathan