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hi_mpi_vpc_crop_resize_resize_paste

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

The Atlas Training Series Product does not support this API.

Description

Crops an ROI from the input image, resizes the crop ROI twice, and pastes the resized ROI in the specified area of the output image. This API is asynchronous.

Restrictions

  • The number of output images is at least 1 and at most the number of crop ROIs. That is, if multiple ROIs are cropped from an input image, there can be one or more paste ROIs. This depends on the address specified in the hi_vpc_crop_resize_resize_paste_region struct.
  • When the input and output images are in ARGB8888, ABGR8888, RGBA8888, or BGRA8888 format, the A component value changes to 0 after being resized by this API.
  • The resizing algorithms configured for the two resizing must be the same.
  • For details about the restrictions on the VPC functions, see Restrictions.

Prototype

hi_s32 hi_mpi_vpc_crop_resize_resize_paste(hi_vpc_chn chn, const hi_vpc_pic_info *source_pic, hi_vpc_crop_resize_resize_paste_region crop_resize_resize_paste_info[], hi_u32 count, hi_u32 *task_id, hi_s32 milli_sec)

Parameters

Parameter

Input/Output

Description

chn

Input

Channel ID for image processing.

source_pic

Input

Pointer to the source image information.

crop_resize_resize_paste_info

Input

Image cropping, resizing, and pasting information array. The array length is the same as that of the count value.

count

Input

Number of crop, resize, and paste ROIs. Must be in the range of [1, 256].

task_id

Output

Pointer to the task ID, which is used to identify a task.

milli_sec

Input
Timeout interval (ms).
  • -1: blocking mode.
  • 0: non-blocking mode.
  • > 0: timeout interval (timeout mode). The timeout interval varies with the operating system. The deviation is generally within a time slice of an operating system. For example, if the time slice of an operating system is 4 ms and the value of milli_sec is set to 1, the actual timeout interval ranges from 1 ms to 5 ms. When the CPU load is high, the timeout interval may fluctuate.

Returns

Parent topic: VPC