Ejemplo n.º 1
0
int AlgorithmShiftNoise::DoYourJob(Magick::Image& image)
{
    srand(time(NULL));

    image.modifyImage();
    Magick::Pixels pixelCache(image);

    Magick::PixelPacket* pixels=pixelCache.get(0,0,image.columns(), image.rows());

    for (int fromX=0; fromX<image.columns(); fromX++)
        for(int fromY=0; fromY<image.rows(); fromY++)
        {
            int luck=rand()%100;
            if (luck>Percent)
                continue;

            int toX=rand()%image.columns();
            int toY=rand()%image.rows();

            Magick::PixelPacket tmp=pixels[fromX+fromY*image.columns()];
            pixels[fromX+fromY*image.columns()]=pixels[toX+toY*image.columns()];
            pixels[toX+toY*image.columns()]=tmp;
        }

    pixelCache.sync();

    return 0;
}
Ejemplo n.º 2
0
int DetailedAlgorithm::DoYourJob(Magick::Image& image)
{
  image.modifyImage();
  Magick::Pixels pixelCache(image);
  for(int x=0;x<image.columns();x++)
    for(int y=0;y<image.rows();y++)
      OperationPerPixel(pixelCache.get(x,y,1,1),x,y);
  pixelCache.sync();
  return 0;
}
Ejemplo n.º 3
0
int SimpleAlgorithm::DoYourJob(Magick::Image& image)
{
  //"Note: The main benefit of the 'Pixels' class is that it provides efficient access to raw image pixels"
  image.modifyImage();
  Magick::Pixels pixelCache(image);
  for(int x=0;x<image.columns();x++)
    for(int y=0;y<image.rows();y++)
      OperationPerPixel(pixelCache.get(x,y,1,1));
  pixelCache.sync();
  return 0;
}
Ejemplo n.º 4
0
static Magick::Image* ImageCtor_layer(iTJSDispatch2* lay) {
	unsigned int w, h;
	unsigned char *p;
	long s;
	if (!lay || TJS_FAILED(lay->IsInstanceOf(0, 0, 0, TJS_W("Layer"), lay)))
		TVPThrowExceptionMessage(TJS_W("Magick::Image: _layer method needs Layer-instance param."));

	// レイヤサイズ取得
	tTJSVariant tmp[2];
	lay->PropGet(0, TJS_W("imageWidth"),  0, &tmp[0], lay);
	lay->PropGet(0, TJS_W("imageHeight"), 0, &tmp[1], lay);
	w = static_cast<unsigned int>((tTVInteger)tmp[0]);
	h = static_cast<unsigned int>((tTVInteger)tmp[1]);

	// バッファ取得
	lay->PropGet(0, TJS_W("mainImageBuffer"),         0, &tmp[0], lay);
	lay->PropGet(0, TJS_W("mainImageBufferPitch"),    0, &tmp[1], lay);
	p = reinterpret_cast<unsigned char*>((tTVInteger)tmp[0]);
	s = static_cast<long               >((tTVInteger)tmp[1]);

	typedef Magick::PixelPacket PixelT;
	typedef Magick::Color ColorT;
	Magick::Image *image = new Magick::Image(Magick::Geometry(w, h), ColorT());
	image->modifyImage();
	image->type(Magick::TrueColorMatteType);
	// コピー
	if (sizeof(Magick::Quantum) == 1) {
		// 8bit quantum 専用
		for (unsigned int y = 0; y < h; y++, p+=s) {
			unsigned char *cp = p;
			PixelT *q = image->getPixels(0, y, w, 1); 
			for (int i = w; i > 0; i--, cp+=4) {
				*q++ = ColorT(static_cast<Magick::Quantum>(cp[2]),
							  static_cast<Magick::Quantum>(cp[1]),
							  static_cast<Magick::Quantum>(cp[0]),
							  ~static_cast<Magick::Quantum>(cp[3]));
			}
			image->syncPixels();
		}
	} else {
		// それ以外はdouble経由なので重い
		for (unsigned int y = 0; y < h; y++, p+=s) {
			unsigned char *cp = p;
			PixelT *q = image->getPixels(0, y, w, 1); 
			for (int i = w; i > 0; i--, cp+=4) {
				Magick::ColorRGB col(cp[2]/255.0, cp[1]/255.0, cp[0]/255.0);
				col.alpha(cp[3]/255.0);
				*q++ = col;
			}
			image->syncPixels();
		}
	}
	return image;
}
Ejemplo n.º 5
0
int SingleMaskConvolutionAlgorithm::DoYourJob(Magick::Image& image)
{
  image.modifyImage();
  Magick::Pixels pixelCache(image);
  Magick::PixelPacket* pixels;
  for(int x=0;x<image.columns();x++)
    {
      int rectangleWidth=ConvolutionMask.Width;
      int maskX=x-ConvolutionMask.Width/2;
      if(maskX<0)
        {
          rectangleWidth+=maskX;
          maskX=0;
        }
      if(maskX+rectangleWidth>image.columns())
        rectangleWidth=image.columns()-maskX;

      for(int y=0;y<image.rows();y++)
        {
          int rectangleHeight=ConvolutionMask.Height;
          int maskY=y-ConvolutionMask.Height/2;
          if(maskY<0)
            {
              rectangleHeight+=maskY;
              maskY=0;
            }
          if(maskY+rectangleHeight>image.rows())
            rectangleHeight=image.rows()-maskY;
          
          pixels=pixelCache.get(maskX,maskY,rectangleWidth,rectangleHeight);
          Magick::PixelPacket maskResult;
          maskResult.red=maskResult.green=maskResult.blue=0;

          for(int mx=0;mx<rectangleWidth;mx++)
            for(int my=0;my<rectangleHeight;my++)
              {
                maskResult.red+=ConvolutionMask[mx][my]*pixels[mx+rectangleWidth*my].red;
                maskResult.green+=ConvolutionMask[mx][my]*pixels[mx+rectangleWidth*my].green;
                maskResult.blue+=ConvolutionMask[mx][my]*pixels[mx+rectangleWidth*my].blue;
              }

          maskResult.red/=ConvolutionMask.Weight;
          maskResult.green/=ConvolutionMask.Weight;
          maskResult.blue/=ConvolutionMask.Weight;
          
          OperationPerPixel(pixels,x,y,&maskResult);
        }
    }
  pixelCache.sync();
  return 0;
}
/*----------------------------------------------------------------------------
 Reads image data from a file into the raw data with dimensions
----------------------------------------------------------------------------*/
void read_img( string filename, Magick::Blob &blob, int &width, int &height )
{
    Magick::Image *magick;  /* ImageMagick object */

    /* load the file into an ImageMagick object */
    magick = new Magick::Image( filename.c_str() );

    /* get image dimensions from ImageMagick */
    width = magick->columns();
    height = magick->rows();

    /* convert image to grayscale, 8-bit depth and get raw data */
    magick->modifyImage();
    magick->write( &blob, "GRAY", 8 );

    /* enough magick for now */
    delete magick;
}
Ejemplo n.º 7
0
void scan_image (const char *filename)
{
    scanner.reset();
    // normally scanner would reset associated decoder,
    // but this debug program connects them manually
    // (to make intermediate state more readily available)
    // so decoder must also be reset manually
    decoder.reset();

    Magick::Image image;
    image.read(filename);
    string file = image.baseFilename();
    size_t baseidx = file.rfind('/');
    if(baseidx != string::npos)
        file = file.substr(baseidx + 1, file.length() - baseidx - 1);
    ofstream svg((file + ".svg").c_str());

    unsigned inwidth = image.columns();
    unsigned flush1 = inwidth / 32;
    unsigned flush0 = 2;
    unsigned width = inwidth + flush1 + flush0;
    unsigned height = image.rows();
    unsigned midy = (height + 1) / 2 + 2;
    image.crop(Magick::Geometry(inwidth, 1, 0, midy));
    image.size(Magick::Geometry(width, 1, 0, 0));

    svg << "<?xml version='1.0'?>" << endl
        << "<!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 1.1//EN'"
        << " 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'>" << endl
        << "<svg version='1.1' id='top'"
        << " width='10in' height='6in' preserveAspectRatio='xMinYMid slice'"
        << " overflow='visible' viewBox='0,0 " << width * 2 << ",384'"
        << " xmlns:xlink='http://www.w3.org/1999/xlink'"
        << " xmlns='http://www.w3.org/2000/svg'>" << endl
        << "<defs><style type='text/css'><![CDATA[" << endl
        << "  * { stroke-linejoin: round; stroke-linecap: round;"
        <<      " stroke-width: .1; text-anchor: middle;"
        <<      " image-rendering: optimizeSpeed;"
        <<      " font-size: 6; font-weight: bold }" << endl
        << "  path { fill: none }" << endl
        << "  #zero { stroke: #00f }" << endl
        << "  #edges { stroke: #f00 }" << endl
        << "  #cur-edge { stroke: #f44 }" << endl
        << "  #raw { stroke: orange }" << endl
        << "  #y0 { stroke: yellow }" << endl
        << "  #y1 { stroke: #0c0 }" << endl
        << "  #y2 { stroke: #0aa }" << endl
        << "  .y1thr { stroke: #f0f }" << endl
        << "  rect.bar { fill: black }" << endl
        << "  text.bar { fill: white }" << endl
        << "  rect.space { fill: white }" << endl
        << "  text.space { fill: black }" << endl
        << "  text.data { fill: #44f; font-size: 16 }" << endl
        << "]]></style></defs>" << endl
        << "<image width='" << width * 2 << "' height='384'"
        << " preserveAspectRatio='none'"
        << " xlink:href='" << file << ".png'/>" << endl
        << "<g transform='translate(1,384) scale(2,-.5)'>" << endl;

    // brute force
    unsigned raw[width];
    {
        // extract scan from image pixels
        image.modifyImage();
        Magick::Pixels view(image);
        Magick::PixelPacket *pxp = view.get(0, 0, width, 1);
        Magick::ColorYUV y;
        double max = 0;
        svg << "<path id='raw' d='M";
        unsigned i;
        for(i = 0; i < inwidth; i++, pxp++) {
            y = *pxp;
            if(max < y.y())
                max = y.y();
            raw[i] = (unsigned)(y.y() * 0x100);
            svg << ((i != 1) ? " " : " L ") << i << "," << raw[i];
            y.u(0);
            y.v(0);
            *pxp = y;
        }
        y.y(max); /* flush scan FIXME? */
        for(; i < inwidth + flush1; i++) {
            raw[i] = (unsigned)(y.y() * 0x100);
            svg << " " << i << "," << raw[i];
            *pxp++ = y;
        }
        y.y(0);
        for(; i < width; i++) {
            raw[i] = (unsigned)(y.y() * 0x100);
            svg << " " << i << "," << raw[i];
            *pxp++ = y;
        }
        view.sync();
        svg << "'/>" << endl
            << "</g>" << endl;
    }
    image.depth(8);
    image.write(file + ".png");

    // process scan and capture calculated values
    unsigned cur_edge[width], last_edge[width];
    int y0[width], y1[width], y2[width], y1_thr[width];

    svg << "<g transform='translate(-3)'>" << endl;
    for(unsigned i = 0; i < width; i++) {
        int edge = scanner.scan_y(raw[i]);
        unsigned x;
        zbar_scanner_get_state(scanner.get_c_scanner(), &x,
                                &cur_edge[i], &last_edge[i],
                                &y0[i], &y1[i], &y2[i], &y1_thr[i]);
#ifdef DEBUG_SCANNER
        cerr << endl;
#endif
        cur_edge[i] += i - x;
        if(edge) {
            last_edge[i] += i - x;
            unsigned w = scanner.get_width();
            svg << "<rect x='" << (2. * (last_edge[i] - w) / ZBAR_FRAC)
                << "' width='" << (w * 2. / ZBAR_FRAC)
                << "' height='32' class='"
                << (scanner.get_color() ? "space" : "bar") << "'/>" << endl
                << "<text transform='translate("
                << ((2. * last_edge[i] - w) / ZBAR_FRAC) - 3
                << ",16) rotate(90)' class='"
                << (scanner.get_color() ? "space" : "bar") << "'>" << endl
                << w << "</text>" << endl;
            zbar_symbol_type_t sym = decoder.decode_width(w);
            if(sym > ZBAR_PARTIAL) {
                svg << "<text transform='translate("
                    << (2. * (last_edge[i] + w) / ZBAR_FRAC)
                    << ",208) rotate(90)' class='data'>"
                    << decoder.get_data_string() << "</text>" << endl;
            }
        }
        else
            last_edge[i] = 0;
    }

    svg << "</g>" << endl
        << "<g transform='translate(-3,384) scale(2,-.5)'>" << endl
        << "<path id='edges' d='";
    for(unsigned i = 0; i < width; i++)
        if(last_edge[i])
            svg << " M" << ((double)last_edge[i] / ZBAR_FRAC) << ",0v768";
    svg << "'/>" << endl
        << "</g>" << endl
        << "<g transform='translate(-1,384) scale(2,-.5)'>" << endl
        << "<path id='y0' d='M";
    for(unsigned i = 0; i < width; i++)
        svg << ((i != 1) ? " " : " L ") << i << "," << y0[i];
    svg << "'/>" << endl
        << "</g>" << endl;

    svg << "<g transform='translate(-1,128) scale(2,-1)'>" << endl
        << "<line id='zero' x2='" << width << "'/>" << endl
        << "<path id='cur-edge' d='";
    for(unsigned i = 1; i < width - 1; i++)
        if(!last_edge[i + 1] && (cur_edge[i] != cur_edge[i + 1]))
            svg << " M" << ((double)cur_edge[i] / ZBAR_FRAC) - 1 << ",-32v64";
    svg << "'/>" << endl
        << "<path class='y1thr' d='M";
    for(unsigned i = 0; i < width; i++)
        svg << ((i != 1) ? " " : " L ") << i << "," << y1_thr[i];
    svg << "'/>" << endl
        << "<path class='y1thr' d='M";
    for(unsigned i = 0; i < width; i++)
        svg << ((i != 1) ? " " : " L ") << i << "," << -y1_thr[i];
    svg << "'/>" << endl
        << "<path id='y1' d='M";
    for(unsigned i = 0; i < width; i++)
        svg << ((i != 1) ? " " : " L ") << (i - 0.5) << "," << y1[i];
    svg << "'/>" << endl
        << "<path id='y2' d='M";
    for(unsigned i = 0; i < width; i++)
        svg << ((i != 1) ? " " : " L ") << i << "," << y2[i];
    svg << "'/>" << endl
        << "</g>" << endl;

    svg << "</svg>" << endl;
}