hi_transform_config

Description

Defines the affine transformation, perspective transformation, or remapping configuration.

Prototype

typedef struct {   
    hi_u32 interpolation;                
    hi_vpc_bord_type  border_type;     
    hi_vpc_scalar    scalar_value;     
} hi_transform_config;

Members

Member	Description
interpolation	Resizing algorithm. The options are as follows: 0: the conventional bilinear algorithm 1: the conventional nearest neighbor algorithm 2: the conventional bicubic algorithm.
border_type	Border making type. The options are as follows: 0: fixed value of the register 1: border replication mode
scalar_value	Pixel value for image padding. Only three channels are supported. If the input image format is YUV400, val[0] stores the Y component. val[1], val[2], and val[3] are reserved and need to be initialized to 0.

Member

Description

interpolation

Resizing algorithm. The options are as follows:

0: the conventional bilinear algorithm
1: the conventional nearest neighbor algorithm
2: the conventional bicubic algorithm.

border_type

Border making type. The options are as follows:

0: fixed value of the register
1: border replication mode

scalar_value

Pixel value for image padding. Only three channels are supported.

If the input image format is YUV400, val[0] stores the Y component. val[1], val[2], and val[3] are reserved and need to be initialized to 0.

Parent topic: VPC Image Processing