vpc_crop_resize_paste

Applicability

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas training product	x
Atlas inference product	√
Atlas 200I/500 A2 inference product	√

Description

Crops one or more ROIs from an input image, resizes them, and stores them to a specified area of the output image. This API is asynchronous.

Prototype

C Prototype

hi_s32 hi_mpi_vpc_crop_resize_paste (hi_vpc_chn chn, const hi_vpc_pic_info *source_pic, hi_vpc_crop_resize_paste_region crop_resize_paste_info[], hi_u32 count, hi_u32 *task_id, hi_s32 milli_sec);

Python Function

task_id, ret = acl.himpi.vpc_crop_resize_paste(chn, source_pic, crop_resize_paste_info, count, milli_sec)

Parameters

Parameter	Description
chn	Int, channel ID for image processing.
source_pic	Dict, source image information. For details, see hi_vpc_pic_info. For details about related restrictions, see Restrictions.
crop_resize_paste_info	List, information about the cropped, resized, and pasted images. The length must be the same as the value of count. For details, see hi_vpc_crop_resize_paste_region.
count	Int, number of crop ROIs. Value range: [1, 256].
milli_sec	Int, timeout interval, in milliseconds.

Return Value

Return Value	Description
ret	Int, error code. 0 indicates success. Other values indicate failure. For details, see VPC Return Codes.
task_id	Int, task ID, used to identify a task.

Restrictions

Version	Restrictions
Atlas inference product	Input image size and format: When the input image size 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. When the input image width or height is in the range of (4096, 8192], the supported formats are as follows: The following enum values of hi_pixel_format are supported: HI_PIXEL_FORMAT_YUV_400 = 0, // YUV400 8bit HI_PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1, // YUV420SP NV12 8bit HI_PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2, // YUV420SP NV21 8bit HI_PIXEL_FORMAT_YUV_SEMIPLANAR_422 = 3, // YUV422SP 8bit HI_PIXEL_FORMAT_YVU_SEMIPLANAR_422 = 4, // YVU422SP 8bit HI_PIXEL_FORMAT_YUV_SEMIPLANAR_444 = 5, // YUV444SP 8bit HI_PIXEL_FORMAT_YVU_SEMIPLANAR_444 = 6, // YVU444SP 8bit HI_PIXEL_FORMAT_YUYV_PACKED_422 = 7, // YUV422Packed YUYV 8bit HI_PIXEL_FORMAT_UYVY_PACKED_422 = 8, // YUV422Packed UYVY 8bit HI_PIXEL_FORMAT_YVYU_PACKED_422 = 9, // YUV422Packed YVYU 8bit HI_PIXEL_FORMAT_VYUY_PACKED_422 = 10, // YUV422Packed VYUY 8bit For details about the restrictions on the width and height alignment and buffer size of each image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. For details about the restrictions on the output image resolution, image format, width and height alignment, and buffer size, see Restrictions. 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 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_paste_region struct. hi_vpc_crop_resize_paste_region allows diversified setting combinations. For example, if the desired size for resizing is the same as the crop ROI size, resizing is not performed. If the resized width is not a multiple of 16, pasting will result in random data and affect the output image (area outside the paste ROI).
Atlas 350 Accelerator Card Atlas 200I/500 A2 inference product Atlas A2 training product/Atlas A2 inference product Atlas A3 training product/Atlas A3 inference product	For details about the restrictions on the image size, image format, width and height alignment, and buffer size, see Restrictions. Due to restrictions on downsampling of YUV images, when the output image format is YUV420SP or YUV422SP, the top and left offset of the paste ROI must be even numbers. 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 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_paste_region struct. hi_vpc_crop_resize_paste_region allows diversified setting combinations. For example, if the desired size for resizing is the same as the crop ROI size, resizing is not performed.

Version

Restrictions

Atlas inference product

Input image size and format:

When the input image size 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.

When the input image width or height is in the range of (4096, 8192], the supported formats are as follows:

The following enum values of hi_pixel_format are supported:

HI_PIXEL_FORMAT_YUV_400 = 0,               // YUV400 8bit
HI_PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1,    // YUV420SP NV12 8bit   
HI_PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2,    // YUV420SP NV21 8bit 
HI_PIXEL_FORMAT_YUV_SEMIPLANAR_422 = 3,    // YUV422SP 8bit
HI_PIXEL_FORMAT_YVU_SEMIPLANAR_422 = 4,    // YVU422SP 8bit
HI_PIXEL_FORMAT_YUV_SEMIPLANAR_444 = 5,    // YUV444SP 8bit
HI_PIXEL_FORMAT_YVU_SEMIPLANAR_444 = 6,    // YVU444SP 8bit
HI_PIXEL_FORMAT_YUYV_PACKED_422 = 7,       // YUV422Packed YUYV 8bit
HI_PIXEL_FORMAT_UYVY_PACKED_422 = 8,       // YUV422Packed UYVY 8bit
HI_PIXEL_FORMAT_YVYU_PACKED_422 = 9,       // YUV422Packed YVYU 8bit
HI_PIXEL_FORMAT_VYUY_PACKED_422 = 10,      // YUV422Packed VYUY 8bit

For details about the restrictions on the width and height alignment and buffer size of each image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.

For details about the restrictions on the output image resolution, image format, width and height alignment, and buffer size, see Restrictions.
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 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_paste_region struct.
hi_vpc_crop_resize_paste_region allows diversified setting combinations. For example, if the desired size for resizing is the same as the crop ROI size, resizing is not performed.
If the resized width is not a multiple of 16, pasting will result in random data and affect the output image (area outside the paste ROI).

Atlas 350 Accelerator Card

Atlas 200I/500 A2 inference product

Atlas A2 training product/Atlas A2 inference product

Atlas A3 training product/Atlas A3 inference product

For details about the restrictions on the image size, image format, width and height alignment, and buffer size, see Restrictions.
Due to restrictions on downsampling of YUV images, when the output image format is YUV420SP or YUV422SP, the top and left offset of the paste ROI must be even numbers.
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 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_paste_region struct.
hi_vpc_crop_resize_paste_region allows diversified setting combinations. For example, if the desired size for resizing is the same as the crop ROI size, resizing is not performed.

Parent topic: VPC APIs