acldvppVpcBatchCropAsync

Crops one or more selected ROIs from each input image and loads the crop ROIs to the destination areas. This API is asynchronous.

Model	Restriction
Atlas 200/300/500 Inference Product Atlas Training Series Product	Input image resolution and format: When the input image resolution is in the range of [10 × 6, 4096 × 4096], the input image formats described in Restrictions on Image Formats, Width and Height Alignment, and Buffers are supported. When the width or height of the input image is within the range of (4096, 8192], the supported formats are as follows: The following enum values of acldvppPixelFormat are supported: PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1, // YUV420SP NV12 8bit PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2, // YUV420SP NV21 8bit For details about the output image resolution and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. For details about the restrictions on the width and height alignment, buffer size, and image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. The cropped image will be resized again if the size of cropArea is inconsistent with that of the canvas. The high-order filtering algorithm developed by Huawei is used by default.

Model

Restriction

Atlas 200/300/500 Inference Product

Atlas Training Series Product

Input image resolution and format:
- When the input image resolution is in the range of [10 × 6, 4096 × 4096], the input image formats described in Restrictions on Image Formats, Width and Height Alignment, and Buffers are supported.
- When the width or height of the input image is within the range of (4096, 8192], the supported formats are as follows:
  The following enum values of acldvppPixelFormat are supported:
```
PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1,       // YUV420SP NV12 8bit   
PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2,       // YUV420SP NV21 8bit 
```
For details about the output image resolution and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
For details about the restrictions on the width and height alignment, buffer size, and image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
The cropped image will be resized again if the size of cropArea is inconsistent with that of the canvas. The high-order filtering algorithm developed by Huawei is used by default.

aclError acldvppVpcBatchCropAsync(acldvppChannelDesc *channelDesc,

acldvppBatchPicDesc *srcBatchPicDescs,

uint32_t *roiNums,

uint32_t size,

acldvppBatchPicDesc *dstBatchPicDescs,

acldvppRoiConfig *cropAreas[],

aclrtStream stream)

Parameter	Input/Output	Description
channelDesc	Input	Pointer to the channel description. Must be the same as the channelDesc argument passed to the acldvppCreateChannel call.
srcBatchPicDescs	Input	Pointer to the description of batch input images. Call acldvppCreateBatchPicDesc to create an image description. Call acldvppGetPicDesc to obtain the description of a specified image. Call acldvppSetPicDesc series to set the image description (including the buffer address, buffer size, image format, and image resolution).
roiNums	Input	Pointer to the number of crop ROIs. The maximum number of crop ROIs is 256. roiNums is an array. The sum of the elements is up to 256, which must be consistent with batchSize in the dstBatchPicDescs struct. roiNums[0]+...+roiNums[size-1] <= 256
size	Input	Length of the roiNums array, up to 256.
dstBatchPicDescs	Input/Output	Pointer to the description of batch output images. When dstBatchPicDescs is used as an input, the user needs to: Call acldvppCreateBatchPicDesc to create an image description. Call acldvppGetPicDesc to obtain the description of a specified image. Call acldvppSetPicDesc series to set the image description (including the buffer address, buffer size, image format, and image resolution).
cropAreas	Input	Pointer array for the crop ROIs. Call acldvppCreateRoiConfig to create an ROI configuration.
stream	Input	Stream.

0 on successful task delivery; else, failure.

Parent topic: VPC