int main()
{
int width ;
int height;
// parse pgm header
int src_pgm_header_len=read_pgm_header(src_pgm_file,width,height);
if (src_pgm_header_len==0) return -1;
//width = 176; height= 144;
nm8u* src=nmppsAddr_8u((nm8u*)src_pgm_file,src_pgm_header_len);
int dst_pgm_header_len=save_pgm_header(dst_pgm_file,width,height," Created By RC-Module(2015)");
nm8u* dst=nmppsAddr_8u((nm8u*)dst_pgm_file,dst_pgm_header_len);
// Sobel filtration
SobelCuts sobel;
if (sobel.initAlloc(width, height,30))
return -1;
clock_t t0=clock();
sobel.filter(src,dst);
clock_t t1=clock();
sobel.free();
return t1-t0;
}
void read_pgm( std::istream &ifile, MonochromeImageWriter &pixels )
{
size_t w, h, maxcolor;
read_pgm_header( ifile, w, h, maxcolor );
if (maxcolor > 255)
throw std::logic_error( "only 8-bit supported");
if (w ==0 || h==0 )
throw std::logic_error( "zero size of image");
pixels.set_size(w,h);
std::cerr<<"Reading image "<<w<<"x"<<h<<" with "<<maxcolor<<" colors\n";
const size_t BUF_SIZE=1024;
unsigned char buffer[BUF_SIZE];
size_t sz = w*h;
size_t nLeft = sz;
while (ifile && (nLeft != 0)){
ifile.read((char *)buffer, std::min(BUF_SIZE, nLeft));
size_t nRead = ifile.gcount();
pixels.write_pixels(buffer, nRead);
nLeft -= nRead;
}
if (nLeft != 0)
throw std::logic_error("Premature end of file");
}
int main()
{
int width ;
int height;
// parse pgm header
int src_pgm_header_len=read_pgm_header(src_pgm_file,width,height);
if (src_pgm_header_len==0) {
width=128; // use default value if pgm-header is invalid
height=128; // use default value if pgm-header is invalid
}
nm8u* src=nmppsAddr_8u((nm8u*)src_pgm_file,src_pgm_header_len);
int dst_pgm_header_len=save_pgm_header(dst_pgm_file,width,height," Created By RC-Module(2015)");
nm8u* dst=nmppsAddr_8u((nm8u*)dst_pgm_file,dst_pgm_header_len);
// Sobel filtration
CBaseSobel sobel(width, height);
if (!sobel.isReady) return -1;
clock_t t0=clock();
sobel.filter(src,dst);
clock_t t1=clock();
return t1-t0;
}
