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opencv-wasm

optflow_calcOpticalFlowSF

optflowfunctionOpenCV 5.0.0
import { optflow_calcOpticalFlowSF } from '@banou/opencv-wasm'

Use after await initOpenCV(). See the initialization and named imports guide.

ARGUMENTSfrom_, to, flow, layers
FUNCTIONoptflow_calcOpticalFlowSF
RETURN TYPEvoid
Call structure. A void return can still write to destination arguments. The parameter descriptions define inputs, outputs and ownership.

Calculate an optical flow using "SimpleFlow" algorithm.

Note: - An example using the simpleFlow algorithm can be found at samples/simpleflow_demo.cpp

optflow_calcOpticalFlowSF(from_: Mat, to: Mat, flow: Mat, layers: number, averaging_block_size: number, max_flow: number): void;
from_

First 8-bit 3-channel image.

to

Second 8-bit 3-channel image of the same size as prev

flow

Output destination, filled by the native operation. computed flow image that has the same size as prev and type CV_32FC2

layers

Number of layers

averaging_block_size

Size of block through which we sum up when calculate cost function for pixel

max_flow

maximal flow that we search at each level

Upstream declaration ↗

These signatures describe this package. Upstream documentation can mention optional backends that are absent from this build. Check runtime compatibility before choosing a backend or file format.