void MakeData(const SamplesDesctiptors &descriptors,
              cv::Mat *features, cv::Mat *targets) {
  size_t rowIndex = 0;
  int *target = targets->ptr<int>(0);
  for(SamplesDesctiptors::const_iterator descriptor = descriptors.begin();
      descriptor != descriptors.end(); ++descriptor, ++rowIndex) {
    const float *imageFeature =
      GetImageFeatures(descriptor->first).ptr<float>(0);
    float *feature = features->ptr<float>(rowIndex);
    for(size_t colIndex = 0; colIndex < features->cols; ++colIndex) {
      feature[colIndex] = imageFeature[colIndex] / 255.0;
    }
    target[rowIndex] = descriptor->second;
  }
}
Exemple #2
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MagickExport MagickBooleanType IdentifyImage(Image *image,FILE *file,
  const MagickBooleanType verbose,ExceptionInfo *exception)
{
  char
    color[MaxTextExtent],
    format[MaxTextExtent],
    key[MaxTextExtent];

  ChannelFeatures
    *channel_features;

  ChannelStatistics
    *channel_statistics;

  ColorspaceType
    colorspace;

  const char
    *artifact,
    *name,
    *property,
    *registry,
    *value;

  const MagickInfo
    *magick_info;

  double
    elapsed_time,
    user_time;

  ImageType
    type;

  MagickBooleanType
    ping;

  register const Quantum
    *p;

  register ssize_t
    i,
    x;

  size_t
    distance,
    scale;

  ssize_t
    y;

  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  if (file == (FILE *) NULL)
    file=stdout;
  *format='\0';
  elapsed_time=GetElapsedTime(&image->timer);
  user_time=GetUserTime(&image->timer);
  GetTimerInfo(&image->timer);
  if (verbose == MagickFalse)
    {
      /*
        Display summary info about the image.
      */
      if (*image->magick_filename != '\0')
        if (LocaleCompare(image->magick_filename,image->filename) != 0)
          (void) FormatLocaleFile(file,"%s=>",image->magick_filename);
       if ((GetPreviousImageInList(image) == (Image *) NULL) &&
           (GetNextImageInList(image) == (Image *) NULL) &&
           (image->scene == 0))
        (void) FormatLocaleFile(file,"%s ",image->filename);
      else
        (void) FormatLocaleFile(file,"%s[%.20g] ",image->filename,(double)
          image->scene);
      (void) FormatLocaleFile(file,"%s ",image->magick);
      if ((image->magick_columns != 0) || (image->magick_rows != 0))
        if ((image->magick_columns != image->columns) ||
            (image->magick_rows != image->rows))
          (void) FormatLocaleFile(file,"%.20gx%.20g=>",(double)
            image->magick_columns,(double) image->magick_rows);
      (void) FormatLocaleFile(file,"%.20gx%.20g ",(double) image->columns,
        (double) image->rows);
      if ((image->page.width != 0) || (image->page.height != 0) ||
          (image->page.x != 0) || (image->page.y != 0))
        (void) FormatLocaleFile(file,"%.20gx%.20g%+.20g%+.20g ",(double)
          image->page.width,(double) image->page.height,(double) image->page.x,
          (double) image->page.y);
      (void) FormatLocaleFile(file,"%.20g-bit ",(double) image->depth);
      if (image->type != UndefinedType)
        (void) FormatLocaleFile(file,"%s ",CommandOptionToMnemonic(
          MagickTypeOptions,(ssize_t) image->type));
      if (image->storage_class == DirectClass)
        {
          (void) FormatLocaleFile(file,"DirectClass ");
          if (image->total_colors != 0)
            {
              (void) FormatMagickSize(image->total_colors,MagickFalse,format);
              (void) FormatLocaleFile(file,"%s ",format);
            }
        }
      else
        if (image->total_colors <= image->colors)
          (void) FormatLocaleFile(file,"PseudoClass %.20gc ",(double)
            image->colors);
        else
          (void) FormatLocaleFile(file,"PseudoClass %.20g=>%.20gc ",(double)
            image->total_colors,(double) image->colors);
      if (image->error.mean_error_per_pixel != 0.0)
        (void) FormatLocaleFile(file,"%.20g/%f/%fdb ",(double)
          (image->error.mean_error_per_pixel+0.5),
          image->error.normalized_mean_error,
          image->error.normalized_maximum_error);
      if (GetBlobSize(image) != 0)
        {
          (void) FormatMagickSize(GetBlobSize(image),MagickFalse,format);
          (void) FormatLocaleFile(file,"%s ",format);
        }
      (void) FormatLocaleFile(file,"%0.3fu %lu:%02lu.%03lu",user_time,
        (unsigned long) (elapsed_time/60.0),(unsigned long) floor(fmod(
        elapsed_time,60.0)),(unsigned long) (1000.0*(elapsed_time-
        floor(elapsed_time))));
      (void) FormatLocaleFile(file,"\n");
      (void) fflush(file);
      return(ferror(file) != 0 ? MagickFalse : MagickTrue);
    }
  /*
    Display verbose info about the image.
  */
  p=GetVirtualPixels(image,0,0,1,1,exception);
  ping=p == (const Quantum *) NULL ? MagickTrue : MagickFalse;
  type=GetImageType(image,exception);
  (void) SignatureImage(image,exception);
  (void) FormatLocaleFile(file,"Image: %s\n",image->filename);
  if (*image->magick_filename != '\0')
    if (LocaleCompare(image->magick_filename,image->filename) != 0)
      {
        char
          filename[MaxTextExtent];

        GetPathComponent(image->magick_filename,TailPath,filename);
        (void) FormatLocaleFile(file,"  Base filename: %s\n",filename);
      }
  magick_info=GetMagickInfo(image->magick,exception);
  if ((magick_info == (const MagickInfo *) NULL) ||
      (*GetMagickDescription(magick_info) == '\0'))
    (void) FormatLocaleFile(file,"  Format: %s\n",image->magick);
  else
    (void) FormatLocaleFile(file,"  Format: %s (%s)\n",image->magick,
      GetMagickDescription(magick_info));
  (void) FormatLocaleFile(file,"  Class: %s\n",CommandOptionToMnemonic(
    MagickClassOptions,(ssize_t) image->storage_class));
  (void) FormatLocaleFile(file,"  Geometry: %.20gx%.20g%+.20g%+.20g\n",(double)
    image->columns,(double) image->rows,(double) image->tile_offset.x,(double)
    image->tile_offset.y);
  if ((image->magick_columns != 0) || (image->magick_rows != 0))
    if ((image->magick_columns != image->columns) ||
        (image->magick_rows != image->rows))
      (void) FormatLocaleFile(file,"  Base geometry: %.20gx%.20g\n",(double)
        image->magick_columns,(double) image->magick_rows);
  if ((image->resolution.x != 0.0) && (image->resolution.y != 0.0))
    {
      (void) FormatLocaleFile(file,"  Resolution: %gx%g\n",image->resolution.x,
        image->resolution.y);
      (void) FormatLocaleFile(file,"  Print size: %gx%g\n",(double)
        image->columns/image->resolution.x,(double) image->rows/
        image->resolution.y);
    }
  (void) FormatLocaleFile(file,"  Units: %s\n",CommandOptionToMnemonic(
    MagickResolutionOptions,(ssize_t) image->units));
  (void) FormatLocaleFile(file,"  Type: %s\n",CommandOptionToMnemonic(
    MagickTypeOptions,(ssize_t) type));
  if (image->type != UndefinedType)
    (void) FormatLocaleFile(file,"  Base type: %s\n",CommandOptionToMnemonic(
      MagickTypeOptions,(ssize_t) image->type));
  (void) FormatLocaleFile(file,"  Endianess: %s\n",CommandOptionToMnemonic(
    MagickEndianOptions,(ssize_t) image->endian));
  /*
    Detail channel depth and extrema.
  */
  (void) FormatLocaleFile(file,"  Colorspace: %s\n",CommandOptionToMnemonic(
    MagickColorspaceOptions,(ssize_t) image->colorspace));
  channel_statistics=(ChannelStatistics *) NULL;
  channel_features=(ChannelFeatures *) NULL;
  colorspace=image->colorspace;
  scale=1;
  if (ping == MagickFalse)
    {
      size_t
        depth;

      channel_statistics=GetImageStatistics(image,exception);
      artifact=GetImageArtifact(image,"identify:features");
      if (artifact != (const char *) NULL)
        {
          distance=StringToUnsignedLong(artifact);
          channel_features=GetImageFeatures(image,distance,exception);
        }
      depth=GetImageDepth(image,exception);
      if (image->depth == depth)
        (void) FormatLocaleFile(file,"  Depth: %.20g-bit\n",(double)
          image->depth);
      else
        (void) FormatLocaleFile(file,"  Depth: %.20g/%.20g-bit\n",(double)
          image->depth,(double) depth);
      (void) FormatLocaleFile(file,"  Channel depth:\n");
      if (IsImageGray(image,exception) != MagickFalse)
        colorspace=GRAYColorspace;
      switch (colorspace)
      {
        case RGBColorspace:
        default:
        {
          (void) FormatLocaleFile(file,"    red: %.20g-bit\n",(double)
            channel_statistics[RedPixelChannel].depth);
          (void) FormatLocaleFile(file,"    green: %.20g-bit\n",(double)
            channel_statistics[GreenPixelChannel].depth);
          (void) FormatLocaleFile(file,"    blue: %.20g-bit\n",(double)
            channel_statistics[BluePixelChannel].depth);
          break;
        }
        case CMYKColorspace:
        {
          (void) FormatLocaleFile(file,"    cyan: %.20g-bit\n",(double)
            channel_statistics[CyanPixelChannel].depth);
          (void) FormatLocaleFile(file,"    magenta: %.20g-bit\n",(double)
            channel_statistics[MagentaPixelChannel].depth);
          (void) FormatLocaleFile(file,"    yellow: %.20g-bit\n",(double)
            channel_statistics[YellowPixelChannel].depth);
          (void) FormatLocaleFile(file,"    black: %.20g-bit\n",(double)
            channel_statistics[BlackPixelChannel].depth);
          break;
        }
        case GRAYColorspace:
        {
          (void) FormatLocaleFile(file,"    gray: %.20g-bit\n",(double)
            channel_statistics[GrayPixelChannel].depth);
          break;
        }
      }
      if (image->matte != MagickFalse)
        (void) FormatLocaleFile(file,"    alpha: %.20g-bit\n",(double)
          channel_statistics[AlphaPixelChannel].depth);
      scale=1;
      if (image->depth <= MAGICKCORE_QUANTUM_DEPTH)
        scale=QuantumRange/((size_t) QuantumRange >> ((size_t)
          MAGICKCORE_QUANTUM_DEPTH-image->depth));
    }