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	You are here: Start » Filter Reference » OpenCV » Geometric Image Transformations » cvGetAffineTransform
| Module: | OpenCV | 
|---|
Calculates the affine transform from 3 corresponding points.
Applications
Prepares matrix to be used with cvWarpAffine.
| Name | Type | Description | |
|---|---|---|---|
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				inSrc | Point2DArray | Coordinates of triangle vertices in the source image. | 
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				inDst | Point2DArray | Coordinates of the corresponding triangle vertices in the destination image. | 
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				outM | Matrix | Calculated transformation matrix. | 
Errors
This filter can throw an exception to report error. Read how to deal with errors in Error Handling.
List of possible exceptions:
| Error type | Description | 
|---|---|
| DomainError | Each of input array must contain three points in cvGetAffineTransform. | 
Complexity Level
This filter is available on Basic Complexity Level.

 Basic
