Transpose and then reshape the last two dimensions of inpunt tensor x so that it becomes one dimension, which is reverse to __split_h

Add linear projection to queries, keys, and values.

:param verbose: whether to show progress

是否加入lstm特征层

是否加入lstm特征层

Reshape input tensors at the last dimension to split multi-heads and then transpose. Specifically, transform the input tensor with sh

compute the distance from point to a line ys: coordinates in the first axis xs: coordinates in the second axis point_1, point_2: (x,

Apply four-point perspective transformation based on the largest rectangle This requires clear edges can be seen in original image (p

Gasuss noise

Populates a just-created cache entry.