C++ ImageFeature::ysize方法代码示例

本文整理汇总了C++中ImageFeature::ysize方法的典型用法代码示例。如果您正苦于以下问题：C++ ImageFeature::ysize方法的具体用法？C++ ImageFeature::ysize怎么用？C++ ImageFeature::ysize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ImageFeature的用法示例。

在下文中一共展示了ImageFeature::ysize方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: fft

ImageFeature fft(const ImageFeature &img) {
  ImageFeature result(img.xsize(),img.ysize(),2);
#ifdef HAVE_FFT_LIBRARY
  fftw_complex FIMG[img.xsize()][img.ysize()];

  for(uint x=0;x<img.xsize();++x) {
    for(uint y=0;y<img.ysize();++y) {
      FIMG[x][y].re=img(x,y,0);
      FIMG[x][y].im=0;
    }
  }
  
  fftwnd_plan plan = fftw2d_create_plan(img.xsize(),img.ysize(), FFTW_FORWARD, FFTW_ESTIMATE  | FFTW_IN_PLACE); 
  fftwnd_one(plan,&FIMG[0][0],NULL);
  fftwnd_destroy_plan(plan);
  
  for(uint x=0;x<img.xsize();++x) {
    for(uint y=0;y<img.ysize();++y) {
      result(x,y,0)=FIMG[x][y].re;
      result(x,y,1)=FIMG[x][y].im;
    }
  }
#else
#warning "FFT is used without FFT library enabled."
  ERR << "FFT not available, thus returning empty image instead of fourier transformed version. All that comes now is probably bogus." << endl;
#endif
  return result;
}

开发者ID:418231020，项目名称:fire-cbir，代码行数:28，代码来源:imagelib.cpp

示例2: convolve

void convolve(ImageFeature &img, const ImageFeature &filter) {
  ImageFeature copy=img;
  
  int height2=filter.ysize()/2;
  int width2=filter.xsize()/2;

  double tmp;
  for(uint c=0;c<img.zsize();++c) {
    for(uint x=0;x<img.xsize();++x) {
      for(uint y=0;y<img.ysize();++y) {
        tmp=0.0;
        for(int i=-width2;i<=width2;++i) {
          int xx=x+i;
          if(xx<int(img.xsize()) && int(xx) >= 0) {
            for(int j=-height2;j<=height2;++j) {
              int yy=y+j; 
              if(int(yy)>=0 && yy < int(img.ysize())) {
                tmp+=filter(i+width2,j+height2,0)*copy(xx,yy,c);
              }
            }
          }
        }
        img(x,y,c)=tmp;
      }
    }
  }
}

开发者ID:418231020，项目名称:fire-cbir，代码行数:27，代码来源:imagelib.cpp

示例3: histogramNormalization

void histogramNormalization(ImageFeature &img) {
  const uint bins=256;
  vector<int> H(bins);
  vector<double> T(bins);

  for(uint c=0;c<img.zsize();++c) {
    //DBG(10) << "c=" << c << endl;
    
    for(uint x=0;x<img.xsize();++x) {
      for(uint y=0;y<img.ysize();++y) {
        ++H[int(img(x,y,c)*255)];
      }
    }
    
    for(uint p=1;p<bins;++p) {
      H[p]+=H[p-1];
    }
    
    for(uint p=0;p<bins;++p) {
      T[p]=(1.0/double(img.size()))*double(H[p]);
    }
    
    for(uint x=0;x<img.xsize();++x) {
      for(uint y=0;y<img.ysize();++y) {
        img(x,y,c)=T[int(img(x,y,c)*255)];
      }
    }
    
  }
}

开发者ID:418231020，项目名称:fire-cbir，代码行数:30，代码来源:imagelib.cpp

示例4: makeGray

// default for type is set in imagelib.hpp
// type = 0: maximum (as in HSV)
// type = 1: mean 
// type = 2: luminance (use only for RGB images!)
ImageFeature makeGray(const ImageFeature &img, const uint type) {
  ImageFeature result(img.xsize(), img.ysize(),1) ;
  double value;
  
  if( (type == 2) && (img.zsize() != 3) )
  {
    ERR << "Image has invalid color resolution!" << endl;
    return result;
  }
  
  for(uint x=0;x<img.xsize();++x) {
    for(uint y=0;y<img.ysize();++y) {
      value=0.0;
      switch(type){
      case 0: //max
	for(uint c=0;c<img.zsize();++c) {
	  value=::std::max(value,img(x,y,c));
	}
	break;
      case 1: //mean
        for(uint c=0;c<img.zsize();++c) {
          value+=img(x,y,c);
        }
        value/=img.zsize();
        break;
      case 2: // luminance
        value = 0.3 * img(x,y,0) + 0.59 * img(x,y,1) + 0.11 * img(x,y,2);
        break;
      }
      result(x,y,0)=value;
    }
  }
  return result;
}

开发者ID:418231020，项目名称:fire-cbir，代码行数:38，代码来源:imagelib.cpp

示例5: iDCT

void iDCT(ImageFeature &src, ImageFeature &dest) {
  dest.resize(src.xsize(),src.ysize(),src.zsize()); //NB Not efficient
  
  for(uint c=0;c<src.zsize();++c) {
  
    uint i,j,k;
    double sum;
    // Transform in x direction
    ImageFeature horizontal(src.xsize(), src.ysize(),1);
    for (j = 0; j < src.ysize(); j++) {
      for (i = 0; i < src.xsize(); i++) {
        sum = 0.0;
        for (k = 0; k < src.xsize(); k++) {
          sum += alpha(k,src.xsize())*src(k,j,0)* cos(double(2*i+1)*M_PI*double(k)/(double(2*src.xsize())));  
        }
        horizontal(i,j,0) = sum;
      }
    }

    // Transform in y direction
    for (i = 0; i < src.xsize(); i++) {
      for (j = 0; j < src.ysize(); j++) {
        sum = 0.0;
        for (k = 0; k < src.ysize(); k++) {
          sum += alpha(k, src.xsize())*horizontal(i,k,0)* cos(double(2*j+1)*M_PI*double(k)/(double(2*src.ysize()))); 
        }
        dest(i,j,c) = sum;
      }
    }
  }
}

开发者ID:418231020，项目名称:fire-cbir，代码行数:31，代码来源:imagelib.cpp

示例6: difference

ImageFeature DifferenceOfGaussian::difference(const ImageFeature& img1, const ImageFeature& img2) {
  ImageFeature newImage = ImageFeature(img1.xsize(), img1.ysize(), 1);
  for (int x = 0; x < (int) newImage.xsize(); x++) {
    for (int y = 0; y < (int) newImage.ysize(); y++) {
      newImage(x, y, 0) = img1(x, y, 0) - img2(x, y, 0);
    }
  }
  return newImage;
}

开发者ID:Ferada，项目名称:fire-cbir，代码行数:9，代码来源:differenceofgaussian.cpp

示例7: localvariance

ImageFeature localvariance(const ImageFeature &image, const uint winsize) {
  ImageFeature result(image.xsize(),image.ysize(),1);

  for(uint x=winsize;x<image.xsize()-winsize;++x) {
    for(uint y=winsize;y<image.ysize()-winsize;++y) {
      result(x,y,0)=localvariance(image, winsize, x,y);
    }
  }
  return result;
}

开发者ID:418231020，项目名称:fire-cbir，代码行数:10，代码来源:imagelib.cpp