hi_mpi_vpc_get_rotation_matrix

The Atlas 200/300/500 Inference Product does not support this API.

The Atlas Training Series Product does not support this API.

Description

Obtains the rotation matrix required for affine transformation.

Prototype

hi_s32 hi_mpi_vpc_get_rotation_matrix(hi_float_point center_point, hi_double angle, hi_double scale, hi_transform_matrix *matrix)

Parameters

Parameter

Input/Output

Description

center_point

Input

Rotation center point of the input image.

angle

Input

Rotation angle. A positive value indicates anticlockwise rotation.

scale

Input

Resizing parameter.

If the value of scale is greater than 1, the image is resized up. If the value of scale is less than 1, the image is resized down.

matrix

Output

Rotation matrix for affine transformation.

Returns