vpc_get_remap_lut

Applicability

Product	Supported (√/x)
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas training products	x
Atlas inference products	x
Atlas 200I/500 A2 inference products	√

Function Usage

Based on the remap table (such as affine, perspective, and fisheye) input, the common Bilinear algorithm (similar to the computation process of the OpenCV algorithm) is used to obtain the pixel position remap table used by the system. This API is synchronous.

Prototype

C Prototype

hi_s32hi_mpi_vpc_get_remap_lut(hi_map_param *map_param,  hi_remap_lut *remap_lut)

Python Function

remap_lut, ret =acl.himpi.vpc_get_remap_lut(map_param, remap_lut)

Parameter Description

Parameter	Description
map_param	Dict, dictionary of original map information of a user. For details, see hi_map_param.
remap_lut	Dict, dictionary of information about the pixel position remapping LUT of perspective transformation. For details, see hi_remap_lut. You need to allocate buffer for the lut attribute in advance. The lut_size attribute of the buffer size can be obtained by calling acl.himpi.vpc_get_lut_mem_size.

Return Value Description

Return Value	Description
remap_lut	Dict, dictionary of information about the pixel position remapping LUT of perspective transformation. After this API is successfully called, you can obtain the LUT information of affine transformation by using the address in the lut attribute.
ret	Int, error code. 0: success. Other values: failures. For details, see VPC Return Codes.

Parent topic: VPC APIs