Documentation

acl.himpi.vpc_crop_resize_resize_paste

C 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)

Python Function

task_id, ret = acl.himpi.vpc_crop_resize_resize_paste(chn, source_pic,crop_resize_resize_paste_info,count,milli_sec)

Function Usage

Crops an ROI from the input image, resizes the crop ROI twice (to blur and anonymize sensitive image information), and pastes the resized ROI in the specified area of the output image. This API is asynchronous.

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

The Atlas Training Series Product does not support this API.

Input Description

chn: int, image processing channel ID.

source_pic: dict, source image information dictionary. For details, see hi_vpc_pic_info.

When the input image resolution is in the range of [10 x 6, 4096 x 4096], the input image formats described in Restrictions on Image Formats, Width and Height Alignment, and Buffers are supported.

crop_resize_resize_paste_info: list, image cropping, resizing, and pasting information list. The list length is the same as that of the count value. For details about the element type, see hi_vpc_crop_resize_resize_paste_region.

count: int, number of crop, resize, and paste ROIs. Must be in the range of [1, 256].

When the input image resolution is in the range of [10 x 6, 4096 x 4096], the input image formats described in Restrictions on Image Formats, Width and Height Alignment, and Buffers are supported.

milli_sec: int, 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.

Return Value
ret: int, error code.

task_id: task ID, used to identify a task.

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 dictionary.
  • 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.
  • For details about the restrictions on the VPC functions, see Restrictions.
Parent topic: VPC APIs