Пример #1
0
void sendDecodeSequentialMode(void* storage){
	TwoByte* st = (TwoByte*) storage;

	int h = workingImage.getHeight();
	int w = workingImage.getWidth();
										
	Byte* imgd = workingImage.getImageData();
	
	unsigned int q = 1<<quantizationLevel;

	TwoByte* tblock = new TwoByte[192];
	Byte* idctblock = new Byte[192];

	for(int y = 0; y < h; y+=8){
		for(int x = 0; x < w; x+=8){
			for(int yy= 0; yy < 8; yy++){
				for(int xx = 0; xx < 8; xx++){
					int src = ((y + yy)*w + (x + xx))*3;
					int dest = (yy*8 + xx)*3;
					tblock[dest] = st[src]*q;
					tblock[dest + 1] = st[src + 1]*q;  
					tblock[dest + 2] = st[src + 2]*q;  
				}
			}

			doIDCT(tblock, idctblock);
			
			for(int yy= 0; yy < 8; yy++){
				for(int xx = 0; xx < 8; xx++){
					int dest = ((y + yy)*w + (x + xx))*3;
					int src = (yy*8 + xx)*3;
					imgd[dest]  = idctblock[src];					
					imgd[dest + 1] = idctblock[src + 1];					
					imgd[dest + 2] = idctblock[src + 2];  					
				}
			}
			drawImage(&workingImage, nextStart);
			Sleep(latency);
		}
	}
		
	delete[] tblock;
	delete[] idctblock;
	MessageBox(NULL, "DECODING DONE", "Status", NULL);
}
Пример #2
0
void decodeProgressiveModeSpectralSelection(TwoByte* st){
	int h = workingImage.getHeight();
	int w = workingImage.getWidth();
										
	Byte* imgd = workingImage.getImageData();
	
	unsigned int q = 1<<quantizationLevel;

	TwoByte* tblock = new TwoByte[192];
	Byte* idctblock = new Byte[192];

	memset(tblock, 0x00, sizeof(TwoByte)*192);
	memset(idctblock, 0x00, sizeof(Byte)*192);

	for(int y = 0; y < h; y+=8){
		for(int x = 0; x < w; x+=8){
			for(int yy= 0; yy < 8; yy++){
				for(int xx = 0; xx < 8; xx++){
					int src = ((y + yy)*w + (x + xx))*3;
					int dest = (yy*8 + xx)*3;
					tblock[dest] = st[src]*q;
					tblock[dest + 1] = st[src + 1]*q;  
					tblock[dest + 2] = st[src + 2]*q;  
				}
			}

			doIDCT(tblock, idctblock);
			
			for(int yy= 0; yy < 8; yy++){
				for(int xx = 0; xx < 8; xx++){
					int dest = ((y + yy)*w + (x + xx))*3;
					int src = (yy*8 + xx)*3;
					imgd[dest]  = idctblock[src];					
					imgd[dest + 1] = idctblock[src + 1];					
					imgd[dest + 2] = idctblock[src + 2];  					
				}
			}
		}
	}
		
	delete[] tblock;
	delete[] idctblock;
	drawImage(&workingImage, nextStart);		
}
Пример #3
0
void encode(TwoByte *store){
	int h = originalImage.getHeight();
	int w = originalImage.getWidth();										
	Byte* imgd = originalImage.getImageData();	

	Byte* tblock = new Byte[192];
	double* dctblock = new double[192];
	
	memset(tblock, 0x00, sizeof(Byte)*192);
	memset(dctblock, 0x00, sizeof(double)*192);
	
	unsigned int  q = 1<<quantizationLevel;

	for(int y = 0; y < h; y+=8){
		for(int x = 0; x < w; x+=8){
			for(int yy= 0; yy < 8; yy++){
				for(int xx = 0; xx < 8; xx++){
					int src = ((y+yy)*w + (x + xx))*3;
					int dest = (yy*8 + xx)*3;
					tblock[dest] = imgd[src];
					tblock[dest + 1] = imgd[src + 1];  
					tblock[dest + 2] = imgd[src + 2];  
				}
			}

			doDCT(tblock, dctblock);			

			for(int yy= 0; yy < 8; yy++){
				for(int xx = 0; xx < 8; xx++){
					int dest = ((y+yy)*w + (x + xx))*3;
					int src = (yy*8 + xx)*3;

					store[dest]  = (TwoByte)(dctblock[src]/q); 
					store[dest + 1] = (TwoByte)(dctblock[src + 1]/q);
					store[dest + 2] = (TwoByte)(dctblock[src + 2]/q);   
				}
			}
		}
	}
	delete[] tblock;
	delete[] dctblock;
}
Пример #4
0
/** @function main */
int main( int argc, char** argv )
{
    //300 350
    
    double probability = 0.6;

    std::vector<string> sourceVector = saveFileName(argv[1]);
    std::vector<string> searchVector = saveFileName(argv[2]);

    
    double matched = 0;
    
    for(std::vector<string>::iterator sourceIterator = sourceVector.begin(); sourceIterator != sourceVector.end(); sourceIterator++ ){
        for(std::vector<string>::iterator searchIterator = searchVector.begin(); searchIterator != searchVector.end(); searchIterator++ ){
            if (*sourceIterator == *searchIterator) {
                matched++;
                break;
            }
            
            
        }
    }

    probability *= (matched / sourceVector.size());
    
    
    
    MyImage *image = new MyImage();
    image->setWidth(352);
    image->setHeight(288);
    image->setImagePath(argv[1]);

    if(!image->ReadImage()){
        std::cout << "Error reading MyImage" << std::endl;
    }

    printf("%s", argv[1]);
    
    
   FILE *f = fopen(argv[1], "rb");
    if (!f) {
        printf("error\n");
        exit(1);
    }
    unsigned char pixels[352 * 288 * 3];
    fread(pixels, sizeof(unsigned char), 352*288 * 3, f);
    fclose(f);
    cv::Mat object(Size(352, 288), CV_8UC3, pixels);
    
    namedWindow("image", CV_WINDOW_AUTOSIZE);
    imshow("image", object);
    
    if( !object.data )
    {
        std::cout<< "Error reading object " << std::endl;
        return -1;
    }
    
    cv::Mat tmp, alpha;
    threshold(object, object, 255, 0, THRESH_TOZERO_INV);

    cv::Rect myROI(100, 100, 150, 150);
    
    
    int minHessian = 1000;
    
    cv::SurfFeatureDetector detector( minHessian );
    std::vector<cv::KeyPoint> kp_object;
    detector.upright = false;
    detector.detect( object, kp_object );
    
    cv::SurfDescriptorExtractor extractor;
    cv::Mat des_object;
    
    extractor.compute( object, kp_object, des_object );
    
    cv::FlannBasedMatcher matcher;
    
    
    cv::namedWindow("Good Matches");
    
    std::vector<cv::Point2f> obj_corners(4);
    
    //Get the corners from the object
    obj_corners[0] = cvPoint(0,0);
    obj_corners[1] = cvPoint( object.cols, 0 );
    obj_corners[2] = cvPoint( object.cols, object.rows );
    obj_corners[3] = cvPoint( 0, object.rows );
    
    char key = 'a';
    int framecount = 0;
    while (key != 27)
    {
       
        
        if (framecount < 5)
        {
            framecount++;
            continue;
        }
        
        cv::Mat des_image, img_matches;
        std::vector<cv::KeyPoint> kp_image;
        std::vector<std::vector<cv::DMatch > > matches;
        std::vector<cv::DMatch > good_matches;
        std::vector<cv::Point2f> obj;
        std::vector<cv::Point2f> scene;
        std::vector<cv::Point2f> scene_corners(4);
        cv::Mat H;

        MyImage *sceneMyPic = new MyImage();
        sceneMyPic->setWidth(352);
        sceneMyPic->setHeight(288);
        sceneMyPic->setImagePath(argv[2]);
        sceneMyPic->ReadImage();

        cv::Mat image(Size(352, 288), CV_8UC3, sceneMyPic->getImageData());

        
        detector.detect( image, kp_image );
        extractor.compute( image, kp_image, des_image );
        
        matcher.knnMatch(des_object, des_image, matches, 2);
        
        for(int i = 0; i < cv::min(des_image.rows-1,(int) matches.size()); i++) //THIS LOOP IS SENSITIVE TO SEGFAULTS
        {
            if((matches[i][0].distance < 0.8*(matches[i][1].distance)) && ((int) matches[i].size()<=2 && (int) matches[i].size()>0))
            {
                good_matches.push_back(matches[i][0]);
            }
        }
        
        drawMatches( object, kp_object, image, kp_image, good_matches, img_matches, cv::Scalar::all(-1), cv::Scalar::all(-1), std::vector<char>(), cv::DrawMatchesFlags::NOT_DRAW_SINGLE_POINTS );
        
        if (good_matches.size() >= 4)
        {
            
            Point2f averagePoint;
            for( int i = 0; i < good_matches.size(); i++ )
            {
                obj.push_back( kp_object[ good_matches[i].queryIdx ].pt );
                scene.push_back( kp_image[ good_matches[i].trainIdx ].pt );
                averagePoint.x += kp_image[ good_matches[i].trainIdx ].pt.x;
                averagePoint.y += kp_image[ good_matches[i].trainIdx ].pt.y;
            }
            
            averagePoint.x /= good_matches.size();
            averagePoint.y /= good_matches.size();
            int inRange = 0;
            int delta = 60;
            for( int i = 0; i < good_matches.size(); i++ ){
                int x =kp_image[ good_matches[i].trainIdx ].pt.x;
                int y =kp_image[ good_matches[i].trainIdx ].pt.y;

                if ((x > (averagePoint.x - delta) && x < (averagePoint.x + delta)) && (y > (averagePoint.y - delta) && (y < (averagePoint.y + delta)))) {
                    inRange++;
                }
                
            } 

            if (probability + (double)inRange / good_matches.size() > 0.8) {
                printf("found\n");
            }else{
                MyImage *objectPic = new MyImage();
                objectPic->setWidth(352);
                objectPic->setHeight(288);
                objectPic->setImagePath(argv[1]);
                objectPic->ReadImage();
                
                cv::Mat objectImage(Size(352, 288), CV_8UC3, objectPic->getImageData());
                cv::Mat smallerQueryImage;
                resize(objectImage, smallerQueryImage, Size(16, 16), 0,0, INTER_CUBIC);

                cvtColor(objectImage, objectImage, COLOR_RGB2HSV);

                for (int x = 0; x < 352; x += 16) {
                    for (int y = 0; y < 288; y += 16) {
                        Rect region(Point(x, y), Size(16, 16));
                        
                        cv::Mat subSampleOfScene = image(region);

                        cvtColor(subSampleOfScene, subSampleOfScene, COLOR_RGB2HSV);
                        int h_bins = 50; int s_bins = 60;
                        int histSize[] = { h_bins, s_bins };

                        float h_ranges[] = { 0, 180 };
                        float s_ranges[] = { 0, 256 };
                        
                        const float* ranges[] = { h_ranges, s_ranges };
                        
                        int channels[] = { 0, 1 };
                        MatND hist_base;
                        MatND hist_test;
                        calcHist( &smallerQueryImage, 1, channels, Mat(), hist_base, 2, histSize, ranges, true, false );
                        normalize( hist_base, hist_base, 0, 1, NORM_MINMAX, -1, Mat() );

                        calcHist( &subSampleOfScene, 1, channels, Mat(), hist_test, 2, histSize, ranges, true, false );
                        normalize( hist_test, hist_test, 0, 1, NORM_MINMAX, -1, Mat() );
                        double base_test1 = compareHist(hist_base, hist_test, CV_COMP_CORREL);
                        if (base_test1 > 0.1) {
                            probability += base_test1;
                        }

                    }
                }
                
                if (probability > 0.8) { 
                    
                    printf("found with confidence: %f\n", probability);
                }
                else{
                    printf("not found\n");
                }
               
            }
            
            

            
            line(img_matches,  cv::Point2f(averagePoint.x - 40 + sceneMyPic->getWidth(), averagePoint.y - 40), cv::Point2f(averagePoint.x + 40 + sceneMyPic->getWidth(), averagePoint.y - 40), cv::Scalar(0, 255, 0), 4);
            line(img_matches, cv::Point2f(averagePoint.x + 40 + sceneMyPic->getWidth(), averagePoint.y - 40), cv::Point2f(averagePoint.x + 40 + sceneMyPic->getWidth(), averagePoint.y + 40), cv::Scalar(0, 255, 0), 4);
            line(img_matches, cv::Point2f(averagePoint.x + 40 + sceneMyPic->getWidth(), averagePoint.y + 40), cv::Point2f(averagePoint.x - 40 + sceneMyPic->getWidth(), averagePoint.y + 40), cv::Scalar(0, 255, 0), 4);
            line(img_matches, cv::Point2f(averagePoint.x - 40 + sceneMyPic->getWidth(), averagePoint.y + 40), cv::Point2f(averagePoint.x - 40 + sceneMyPic->getWidth(), averagePoint.y - 40), cv::Scalar(0, 255, 0), 4);

            
        }
        imshow("Good matches", img_matches);
        
        key = cv::waitKey(0);
    }
    return 0;

}