vpc_get_remap_lut

Applicable Products

Product	Supported
Ascend 950PR/Ascend 950DT	√
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	√

Description

Obtains a pixel position remapping LUT used by the system by using the conventional bilinear algorithm (whose compute process is close to that of OpenCV), based on the user-provided remapping LUT (such as affine, perspective, and fisheye). 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)

Parameters

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

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 indicates success. Other values indicate failure. For details, see VPC Return Codes.

Parent topic: VPC APIs