//--------------------------------------------------------------------------------
void ofxCvImage::transform( float angle, float centerX, float centerY,
float scaleX, float scaleY,
float moveX, float moveY ){
if( !bAllocated ){
ofLogError("ofxCvImage") << "transform(): image not allocated";
return;
}
float sina = sin(angle * DEG_TO_RAD);
float cosa = cos(angle * DEG_TO_RAD);
CvMat* transmat = cvCreateMat( 2,3, CV_32F );
cvmSet( transmat, 0,0, scaleX*cosa );
cvmSet( transmat, 0,1, scaleY*sina );
cvmSet( transmat, 0,2, -centerX*scaleX*cosa - centerY*scaleY*sina + moveX + centerX );
cvmSet( transmat, 1,0, -1.0*scaleX*sina );
cvmSet( transmat, 1,1, scaleY*cosa );
cvmSet( transmat, 1,2, -centerY*scaleY*cosa + centerX*scaleX*sina + moveY + centerY);
cvWarpAffine( cvImage, cvImageTemp, transmat );
swapTemp();
flagImageChanged();
cvReleaseMat( &transmat );
}
//--------------------------------------------------------------------------------
void ofxCvImage::warpPerspective( const ofPoint& A, const ofPoint& B, const ofPoint& C, const ofPoint& D ) {
if( !bAllocated ){
ofLog(OF_LOG_ERROR, "in warpPerspective, need to allocate image first");
return;
}
// compute matrix for perspectival warping (homography)
CvPoint2D32f cvsrc[4];
CvPoint2D32f cvdst[4];
CvMat* translate = cvCreateMat( 3,3, CV_32FC1 );
cvSetZero( translate );
cvdst[0].x = 0;
cvdst[0].y = 0;
cvdst[1].x = width;
cvdst[1].y = 0;
cvdst[2].x = width;
cvdst[2].y = height;
cvdst[3].x = 0;
cvdst[3].y = height;
cvsrc[0].x = A.x;
cvsrc[0].y = A.y;
cvsrc[1].x = B.x;
cvsrc[1].y = B.y;
cvsrc[2].x = C.x;
cvsrc[2].y = C.y;
cvsrc[3].x = D.x;
cvsrc[3].y = D.y;
cvWarpPerspectiveQMatrix( cvsrc, cvdst, translate ); // calculate homography
cvWarpPerspective( cvImage, cvImageTemp, translate );
swapTemp();
flagImageChanged();
cvReleaseMat( &translate );
}
//--------------------------------------------------------------------------------
void ofxCvImage::warpPerspective( const ofPoint& A, const ofPoint& B, const ofPoint& C, const ofPoint& D ) {
if( !bAllocated ){
ofLogError("ofxCvImage") << "warpPerspective(): image not allocated";
return;
}
// compute matrix for perspectival warping (homography)
CvPoint2D32f cvsrc[4];
CvPoint2D32f cvdst[4];
CvMat* translate = cvCreateMat( 3,3, CV_32FC1 );
cvSetZero( translate );
cvdst[0].x = 0;
cvdst[0].y = 0;
cvdst[1].x = width;
cvdst[1].y = 0;
cvdst[2].x = width;
cvdst[2].y = height;
cvdst[3].x = 0;
cvdst[3].y = height;
cvsrc[0].x = A.x;
cvsrc[0].y = A.y;
cvsrc[1].x = B.x;
cvsrc[1].y = B.y;
cvsrc[2].x = C.x;
cvsrc[2].y = C.y;
cvsrc[3].x = D.x;
cvsrc[3].y = D.y;
cvGetPerspectiveTransform( cvsrc, cvdst, translate ); // calculate homography
cvWarpPerspective( cvImage, cvImageTemp, translate );
swapTemp();
flagImageChanged();
cvReleaseMat( &translate );
}
//--------------------------------------------------------------------------------
void ofxCvGrayscaleImage::threshold( int value, bool invert) {
//http://lush.sourceforge.net/lush-manual/01a8321b.html
if(invert) cvThreshold( cvImage, cvImageTemp, value, 255, CV_THRESH_BINARY_INV );
else cvThreshold( cvImage, cvImageTemp, value, 255, CV_THRESH_BINARY );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvGrayscaleImage::adaptiveThreshold( int blockSize, int offset, bool invert, bool gauss) {
if( !bAllocated ){
ofLogError("ofxCvGrayscaleImage") << "adaptiveThreshold(): image not allocated";
return;
}
if( blockSize < 2 ) {
ofLogNotice("ofxCvGrayscaleImage") << "adaptiveThreshold(): block size " << blockSize << " < minimum, setting to 3";
blockSize = 3;
}
if( blockSize % 2 == 0 ) {
ofLogNotice("ofxCvGrayscaleImage") << "adaptiveThreshold(): block size " << blockSize << " not odd, adding 1";
blockSize++;
}
int threshold_type = CV_THRESH_BINARY;
if(invert) threshold_type = CV_THRESH_BINARY_INV;
int adaptive_method = CV_ADAPTIVE_THRESH_MEAN_C;
if(gauss) adaptive_method = CV_ADAPTIVE_THRESH_GAUSSIAN_C;
cvAdaptiveThreshold( cvImage, cvImageTemp, 255, adaptive_method,
threshold_type, blockSize, offset);
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvGrayscaleImage::adaptiveThreshold( int blockSize, int offset, bool invert, bool gauss) {
if( !bAllocated ){
ofLog(OF_LOG_ERROR, "in adaptiveThreshold, image is not allocated");
return;
}
if( blockSize < 2 ) {
ofLog(OF_LOG_NOTICE, "in adaptiveThreshold, value < 2, will make it 3");
blockSize = 3;
}
if( blockSize % 2 == 0 ) {
ofLog(OF_LOG_NOTICE, "in adaptiveThreshold, value not odd -> will add 1 to cover your back");
blockSize++;
}
int threshold_type = CV_THRESH_BINARY;
if(invert) threshold_type = CV_THRESH_BINARY_INV;
int adaptive_method = CV_ADAPTIVE_THRESH_MEAN_C;
if(gauss) adaptive_method = CV_ADAPTIVE_THRESH_GAUSSIAN_C;
cvAdaptiveThreshold( cvImage, cvImageTemp, 255, adaptive_method,
threshold_type, blockSize, offset);
swapTemp();
flagImageChanged();
}
/**
* A +-------------+ B
* / \
* / \
* / \
* D +-------------------- + C
*/
void ofCvImage::warpPerspective( const ofPoint& A, const ofPoint& B,
const ofPoint& C, const ofPoint& D )
{
// compute matrix for perspectival warping (homography)
CvPoint2D32f cvsrc[4];
CvPoint2D32f cvdst[4];
CvMat* translate = cvCreateMat( 3,3, CV_32FC1 );
cvSetZero( translate );
cvsrc[0].x = 0;
cvsrc[0].y = 0;
cvsrc[1].x = width;
cvsrc[1].y = 0;
cvsrc[2].x = width;
cvsrc[2].y = height;
cvsrc[3].x = 0;
cvsrc[3].y = height;
cvdst[0].x = A.x;
cvdst[0].y = A.y;
cvdst[1].x = B.x;
cvdst[1].y = B.y;
cvdst[2].x = C.x;
cvdst[2].y = C.y;
cvdst[3].x = D.x;
cvdst[3].y = D.y;
cvWarpPerspectiveQMatrix( cvsrc, cvdst, translate ); // calculate homography
cvWarpPerspective( cvImage, cvImageTemp, translate );
swapTemp();
cvReleaseMat( &translate );
}
//--------------------------------------------------------------------------------
void ofxCvImage::operator *= ( ofxCvImage& mom ) {
if( !mom.bAllocated ){
ofLog(OF_LOG_ERROR, "in *=, mom needs to be allocated");
return;
}
if( !bAllocated ){
ofLog(OF_LOG_NOTICE, "in *=, allocating to match dimensions");
allocate(mom.getWidth(), mom.getHeight());
}
if( mom.getCvImage()->nChannels == cvImage->nChannels &&
mom.getCvImage()->depth == cvImage->depth )
{
if( matchingROI(getROI(), mom.getROI()) ) {
float scalef = 1.0f / 255.0f;
cvMul( cvImage, mom.getCvImage(), cvImageTemp, scalef );
swapTemp();
flagImageChanged();
} else {
ofLog(OF_LOG_ERROR, "in *=, ROI mismatch");
}
} else {
ofLog(OF_LOG_ERROR, "in *=, images need to have matching type");
}
}
//--------------------------------------------------------------------------------
void ofxCvImage::operator &= ( ofxCvImage& mom ) {
if( !mom.bAllocated ){
ofLogError("ofxCvImage") << "operator&=: source image not allocated";
return;
}
if( !bAllocated ){
ofLogNotice("ofxCvImage") << "operator&=: allocating to match dimensions: "
<< mom.getWidth() << " " << mom.getHeight();
allocate(mom.getWidth(), mom.getHeight());
}
if( mom.getCvImage()->nChannels == cvImage->nChannels &&
mom.getCvImage()->depth == cvImage->depth )
{
if( matchingROI(getROI(), mom.getROI()) ) {
cvAnd( cvImage, mom.getCvImage(), cvImageTemp );
swapTemp();
flagImageChanged();
} else {
ofLogError("ofxCvImage") << "operator&=: region of interest mismatch";
}
} else {
ofLogError("ofxCvImage") << "operator&=: images need to have matching type";
}
}
//--------------------------------------------------------------------------------
void ofxCvImage::operator *= ( ofxCvImage& mom ) {
if( !mom.bAllocated ){
ofLogError("ofxCvImage") << "operator*=: mom needs to be allocated";
return;
}
if( !bAllocated ){
ofLogNotice("ofxCvImage") << "operator*=: allocating to match dimensions: "
<< mom.getWidth() << " " << mom.getHeight();
allocate(mom.getWidth(), mom.getHeight());
}
if( mom.getCvImage()->nChannels == cvImage->nChannels &&
mom.getCvImage()->depth == cvImage->depth )
{
if( matchingROI(getROI(), mom.getROI()) ) {
float scalef = 1.0f / 255.0f;
cvMul( cvImage, mom.getCvImage(), cvImageTemp, scalef );
swapTemp();
flagImageChanged();
} else {
ofLogError("ofxCvImage") << "operator*=: region of interest mismatch";
}
} else {
ofLogError("ofxCvImage") << "operator*=: images type mismatch";
}
}
//--------------------------------------------------------------------------------
void ofxCvFloatImage::operator *= ( ofxCvFloatImage& mom ) {
if( mom.width == width && mom.height == height ) {
cvMul( cvImage, mom.getCvImage(), cvImageTemp );
swapTemp();
} else {
cout << "error in *=, images are different sizes" << endl;
}
}
//--------------------------------------------------------------------------------
void ofxCvColorImage::operator += ( ofxCvColorImage& mom ) {
if( mom.width == width && mom.height == height ) {
cvAdd( cvImage, mom.getCvImage(), cvImageTemp );
swapTemp();
} else {
cout << "error in +=, images are different sizes" << endl;
}
}
//--------------------------------------------------------------------------------
void CPUImageFilter::amplify ( CPUImageFilter& mom, float level ) {
float scalef = level / 128.0f;
cvMul( mom.getCvImage(), mom.getCvImage(), cvImageTemp, scalef );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvColorImage::convertHsvToRgb(){
if( !bAllocated ){
ofLogError("ofxCvColorImage") << "convertHsvToRgb(): image not allocated";
return;
}
cvCvtColor( cvImage, cvImageTemp, CV_HSV2RGB);
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvImage::erode() {
if( !bAllocated ){
ofLogError("ofxCvImage") << "erode(): image not allocated";
return;
}
cvErode( cvImage, cvImageTemp, 0, 1 );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvImage::operator += ( float value ) {
if( !bAllocated ){
ofLog(OF_LOG_ERROR, "in -=, need to allocate image first");
return;
}
cvAddS( cvImage, cvScalar(value), cvImageTemp );
swapTemp();
flagImageChanged();
}
// Image Filter Operations
//--------------------------------------------------------------------------------
void ofxCvImage::dilate(int iterations) {
if( !bAllocated ){
ofLogError("ofxCvImage") << "dilate(): image not allocated";
return;
}
cvDilate( cvImage, cvImageTemp, 0, iterations );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvColorImage::operator -= ( float value ) {
if( !bAllocated ){
ofLogError("ofxCvColorImage") << "set(): image not allocated";
return;
}
cvSubS( cvImage, cvScalar(value, value, value), cvImageTemp );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvImage::remap( IplImage* mapX, IplImage* mapY ) {
if( !bAllocated ){
ofLog(OF_LOG_ERROR, "in remap, need to allocate image first");
return;
}
cvRemap( cvImage, cvImageTemp, mapX, mapY );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvImage::erode() {
if( !bAllocated ){
ofLog(OF_LOG_ERROR, "in erode, need to allocate image first");
return;
}
cvErode( cvImage, cvImageTemp, 0, 1 );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvGrayscaleImage::absDiff( ofxCvGrayscaleImage& mom ) {
if( matchingROI(getROI(), mom.getROI()) ) {
cvAbsDiff( cvImage, mom.getCvImage(), cvImageTemp );
swapTemp();
flagImageChanged();
} else {
ofLog(OF_LOG_ERROR, "in *=, ROI mismatch");
}
}
//--------------------------------------------------------------------------------
void ofxCvColorImage::operator *= ( ofxCvColorImage& mom ) {
float scalef = 1.0f / 255.0f;
if( mom.width == width && mom.height == height ) {
cvMul( cvImage, mom.getCvImage(), cvImageTemp, scalef );
swapTemp();
} else {
cout << "error in *=, images are different sizes" << endl;
}
}
//--------------------------------------------------------------------------------
void setfilter::amplify ( setfilter& mom, float level ) {
//-- amplify weak areas --//
float scalef = level / 104.0; //128.0f
cvMul( mom.getCvImage(), mom.getCvImage(), cvImageTemp, scalef );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvImage::operator += ( float value ) {
if( !bAllocated ){
ofLogError("ofxCvImage") << "operator-=: image not allocated";
return;
}
cvAddS( cvImage, cvScalar(value), cvImageTemp );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvImage::remap( IplImage* mapX, IplImage* mapY ) {
if( !bAllocated ){
ofLogError("ofxCvImage") << "remap(): image not allocated";
return;
}
cvRemap( cvImage, cvImageTemp, mapX, mapY );
swapTemp();
flagImageChanged();
}
//--------------------------------------------------------------------------------
void ofxCvImage::blurGaussian( int value ) {
if( value % 2 == 0 ) {
ofLog(OF_LOG_NOTICE, "in blurGaussian, value not odd -> will add 1 to cover your back");
value++;
}
cvSmooth( cvImage, cvImageTemp, CV_GAUSSIAN ,value );
swapTemp();
flagImageChanged();
}
void ofCvImage::undistort( float radialDistX, float radialDistY,
float tangentDistX, float tangentDistY,
float focalX, float focalY,
float centerX, float centerY )
{
float camIntrinsics[] = { focalX, 0, centerX, 0, focalY, centerY, 0, 0, 1 };
float distortionCoeffs[] = { radialDistX, radialDistY, tangentDistX, tangentDistY };
cvUnDistortOnce( cvImage, cvImageTemp, camIntrinsics, distortionCoeffs, 1 );
swapTemp();
}
// Image Transformation Operations
//
//
void ofCvImage::mirror( bool bFlipVertically, bool bFlipHorizontally ) {
int flipMode = 0;
if( bFlipVertically && !bFlipHorizontally ) flipMode = 0;
else if( !bFlipVertically && bFlipHorizontally ) flipMode = 1;
else if( bFlipVertically && bFlipHorizontally ) flipMode = -1;
else return;
cvFlip( cvImage, cvImageTemp, flipMode );
swapTemp();
}
//--------------------------------------------------------------------------------
void ofxCvFloatImage::addWeighted( ofxCvGrayscaleImage& mom, float f ) {
if( mom.width == width && mom.height == height ) {
IplImage* cvTemp = cvCreateImage( cvSize(width,height), IPL_DEPTH_32F, 1 );
cvConvertScale( mom.getCvImage(), cvTemp, 1, 0 );
//cvConvert( mom.getCvImage(), cvImage );
cvAddWeighted( cvTemp, f, cvImage, 1.0f-f,0, cvImageTemp );
swapTemp();
cvReleaseImage( &cvTemp );
} else {
cout << "error in addWeighted, images are different sizes" << endl;
}
}
//--------------------------------------------------------------------------------
void ofxCvImage::blurGaussian( int value ) {
if( !bAllocated ){
ofLogError("ofxCvImage") << "blurGaussian(): image not allocated";
return;
}
if( value % 2 == 0 ) {
ofLogNotice("ofxCvImage") << "blurGaussian(): value " << value << " not odd, adding 1";
value++;
}
cvSmooth( cvImage, cvImageTemp, CV_GAUSSIAN ,value );
swapTemp();
flagImageChanged();
}
