Re: Rotation of image

Hi, the code u gave me does rotation. how can i do a rotation then 
translation of the vector using the same code, thus i may not lose 
parts of the rotated image.


--- In OpenCV@xxxxxxxxxxxxxxx, "Parameswaran" <cegparamesh@...> 
wrote:
>
> The code which i gave you cannot prevent losing of data..
> Try some other code, or the one which you already have..
> 
> Regards, :D
> Paramesh.
> 
> --- In OpenCV@xxxxxxxxxxxxxxx, shadi moudallal <shadi_moudallal@>
> wrote:
> >
> > Hi, thx for ur help.
> >   this function was of grest help to me since it is quick and 
simple
> but the only problem is that when rotating an image it gets out of
> bounds. Is there a way to keep it in bounds.
> > 
> > Parameswaran <cegparamesh@> wrote:
> >   In order to rotate an image, you can use this function:
> > 
> > 
==================================================================
> > 
> > IplImage* GetRotatedImage(IplImage *img, int angle, int xPos, int
> yPos) {
> > 
> >     IplImage *rotatedImg = cvCreateImage(cvGetSize(img), 
IPL_DEPTH_8U,
> > img->nChannels);
> > 
> >     CvPoint2D32f center;
> >     CvMat *mapMatrix = cvCreateMat( 2, 3, CV_32FC1 );;
> > 
> >     center.x = xPos;
> >     center.y = yPos;
> > 
> >     cv2DRotationMatrix( center, angle ,1.0,  mapMatrix );
> >     cvWarpAffine( img, rotatedImg, mapMatrix);
> > 
> >     return rotatedImg;
> > }
> > 
> > 
==================================================================
> > 
> > Regards, :D
> > Paramesh.
> > 
> > --- In OpenCV@xxxxxxxxxxxxxxx, "shadi_moudallal" 
<shadi_moudallal@>
> > wrote:
> > >
> > > Hi,
> > > i downloaded the IPLwithIPP in the files link and tried to 
compile 
> > > it but it didn't work. It seems there is a ipps.h file missing.
> > > i need to use the iplrotate but dont know how and from where 
to get 
> > > it. can someone help me.
> > > thx
> > > 
> > > 
> > > --- In OpenCV@xxxxxxxxxxxxxxx, "guy17il" <guy17il@> wrote:
> > > >
> > > > I found a nice solution if anyone else is interested:
> > > > a function named iplRotate.
> > > > It's include file is <ipl.h> and should be included before 
any 
> > > openCV 
> > > > includes (didn't work otherwise) - also is order for it to 
execute 
> > > > (it compiles and links) you need to put the ipl dll in the 
project 
> > > > directory or add the ipl dll path to the system path 
variable.
> > > > 
> > > > Guy.
> > > > 
> > > > --- In OpenCV@xxxxxxxxxxxxxxx, "guy17il" <guy17il@xxxx> 
wrote:
> > > > > Hi all,
> > > > > 
> > > > > I am trying to ratate an IplImage (90 Clockwise) but there 
seems 
> > > to 
> > > > be 
> > > > > no way to do this.
> > > > > I've searched everywhere - do you know anyway to do this 
without 
> > > > > creating a new IplImage with flipped resolution and 
copying the 
> > > > buffer 
> > > > > (also flipped) ?
> > > > > This seems to me as a bug-prone process which I am trying 
to 
> > > avoid.
> > > > > 
> > > > > Guy.
> > > >
> > >
> > 
> > 
> > 
> > 
> > 
> > 
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