DenseOpticalFlow (OpenCV 4.8.0 Java documentation)

java.lang.Object
- org.opencv.core.Algorithm
- - org.opencv.video.DenseOpticalFlow

Direct Known Subclasses:

DISOpticalFlow, FarnebackOpticalFlow, VariationalRefinement
```
public class DenseOpticalFlow
extends Algorithm
```
Base class for dense optical flow algorithms

Field Summary
- Fields inherited from class org.opencv.core.Algorithm
  nativeObj

Constructor Summary

Constructors
Modifier Constructor Description

protected DenseOpticalFlow(long addr)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static DenseOpticalFlow`	`__fromPtr__(long addr)`
`void`	`calc(Mat I0, Mat I1, Mat flow)`	Calculates an optical flow.
`void`	`collectGarbage()`	Releases all inner buffers.
`protected void`	`finalize()`

Methods inherited from class org.opencv.core.Algorithm
clear, empty, getDefaultName, getNativeObjAddr, save

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DenseOpticalFlow
```
protected DenseOpticalFlow(long addr)
```
- Method Detail
  - __fromPtr__
```
public static DenseOpticalFlow __fromPtr__(long addr)
```
  - calc
```
public void calc(Mat I0,
                 Mat I1,
                 Mat flow)
```
    Calculates an optical flow.
    
    Parameters:
    
    I0 - first 8-bit single-channel input image.
    
    I1 - second input image of the same size and the same type as prev.
    
    flow - computed flow image that has the same size as prev and type CV_32FC2.
  - collectGarbage
```
public void collectGarbage()
```
    Releases all inner buffers.
  - finalize
```
protected void finalize()
                 throws java.lang.Throwable
```
    Overrides:
    
    finalize in class Algorithm
    
    Throws:
    
    java.lang.Throwable