Contents

VNGenerateOpticalFlowRequest

An object that generates directional change vectors for each pixel in the targeted image.

Declaration

class VNGenerateOpticalFlowRequest

Overview

This request operates at a pixel level, so both images need to have the same dimensions to successfully perform the analysis. Setting a region of interest limits the region in which the analysis occurs. However, the system reports the resulting observation at full resolution.

Optical flow requests are resource-intensive, so create only one request at a time, and release it immediately after generating optical flows.

Topics

Configuring the Request

Accessing the Results

Identifying Request Revisions

See Also

Optical flow