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61 lines
2.1 KiB
61 lines
2.1 KiB
9 years ago
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/** @file */
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/* The MIT License
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*
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* Copyright (c) 2008, Naotoshi Seo <sonots(at)sonots.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef CV_INVAFFINE_INCLUDED
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#define CV_INVAFFINE_INCLUDED
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#include "cv.h"
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#include "cvaux.h"
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#include "cxcore.h"
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#include "cvsetrow.h"
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/**
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* Create an inv affine transform matrix from an affine transform matrix
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*
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* @param affine The 2 x 3 CV_32FC1|CV_64FC1 affine matrix
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* @param invaffine The 2 x 3 CV_32FC1|CV_64FC1 affine matrix to be created
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*/
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CVAPI(void) cvInvAffine( const CvMat* affine, CvMat* invaffine )
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{
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CvMat* Affine;
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CvMat* InvAffine;
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CV_FUNCNAME( "cvCreateAffine" );
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__CV_BEGIN__;
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CV_ASSERT( affine->rows == 2 && affine->cols == 3 );
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CV_ASSERT( invaffine->rows == 2 && invaffine->cols == 3 );
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CV_ASSERT( affine->type == invaffine->type );
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Affine = cvCreateMat( 3, 3, affine->type );
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InvAffine = cvCreateMat( 3, 3, affine->type );
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cvSetIdentity( Affine );
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cvSetRows( affine, Affine, 0, 2 );
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cvInv( Affine, InvAffine );
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cvSetRows( InvAffine, invaffine, 0, 2 );
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cvReleaseMat( &Affine );
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cvReleaseMat( &InvAffine );
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__CV_END__;
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}
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#endif
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