MV Perspective Correction DirectShow Filter

The MontiVision Perspective Correction filter corrects perpectiv distortions within a video stream. Use this filter for example to correct the top view onto an object.

 

File: PerspectiveCorrection.ax
CLSID: CLSID_MVPerspectiveCorrection

 

Supported Interfaces

IMVPerspectiveCorrection

IMVHistogram

IMVHistogram2

IMVHistogram3

IMVRegionOfInterest

IMVFilterData

IMVAbout

IMVFilterInfo

 

Supported COM Events

The filter supports following events through the IMVFilterEvents interface. Look at the filter events page for more information.

Event

Value

Description
MV_ALGORITHM_START_EVENT

0

A filter starts processing a video frame or sample.
MV_ALGORITHM_END_EVENT

1

A filter finishes processing a video frame or sample.

 

MV Perspective Correction Property Page

Uses the IMVPerspectiveCorrection interface to setup the filter.

MV Perspective Correction DirectShow filter property page

x-x-Corner Position of the corresponding corner of a distored rectangle within the video stream.
Interposlation Type of interpolation. 
Adjust Perspective Enables the perspective correction.