Elastic Warp 2d

image =	elasticWarp2dImg (inImg,inDxImg,inDyImg)
image =	elasticWarp2dImg (inImg,inDxImg,inDyImg,interpolationPolicy)
image =	elasticWarp2dImg (inImg,inFlowImg)
image =	elasticWarp2dImg (inImg,inFlowImg,interpolationPolicy)

Detailed Description

Apply a generic motion field to an image.

This algorithm transforms the input image according to the input motion field. Hence, the supported displacement is totally generic and is not limited to a rigid or an affine transform. The motion field contains the displacement at each pixel of the input image and can be passed as 2 distinct images or as a two-framed sequence image. In the case of a sequence image, the first frame is the displacement along the x direction and the second frame is the displacement along the y direction.

The motion field is expressed as:

Here is an example of deformation:

Example of Python code :

Example imports

import PyIPSDK
import PyIPSDK.IPSDKIPLGeometricTransform as gtrans

Code Example

    # load input image from file
    inImg = PyIPSDK.loadTiffImageFile(os.path.join(utImagesCommonPath, "Lena_510x509_UInt8.tif"))
    flowImg = PyIPSDK.loadTiffImageFile(os.path.join(utImagesPath, "elasticFlow2d.tif"))
    
    # apply image flipping along x-axis
    outImg = gtrans.elasticWarp2dImg(inImg, flowImg)

Example of C++ code :

Example informations

Header file

#include <IPSDKIPL/IPSDKIPLGeometricTransform/Processor/ElasticWarp2dImg/ElasticWarp2dImg.h>

Code Example

            // Process the operation
            // Please, note that the flow can be passed as a sequence image
            // where dx is the first frame and dy is the second frame
            ImagePtr pOutImg = elasticWarp2dImg(pInImg, pDxImg, pDyImg, interpPolicy);