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;
}
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;
}
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;
}
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;
}
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;
}
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;
}