• the most common type is numpy
• size always be height, width

. ├── core │   ├── io │   ├── view │   ├── cast │   ├── auto

• np: hwc
• pil: hwc
• cv2: hwc
• tensor: nchw

# type: tensor, numpy, pil, cv2
# dtype: auto, fp32, fp16
# range: [0, 255], [-1.0, 1.0], [0.0, 1.0
fastcv.cast(t, type="tensor", )