Beispiel #1
0
bool egami::storeEDF(const std::string& _fileName, const egami::Image& _inputImage) {
	bool anErrorEccured = false;
	etk::FSNode file(_fileName);
	if (file.fileOpenWrite() == false) {
		EGAMI_ERROR("Can not find the file name=\"" << file << "\"");
		return false;
	}
	anErrorEccured = file.filePuts(   std::string("#EDF // Generate with EGAMI (")
	                                + etk::to_string(_inputImage.getSize().x())
	                                + ","
	                                + etk::to_string(_inputImage.getSize().y()) + ")\n");
	
	char tmp[256];
	for (int32_t yyy = 0; yyy < _inputImage.getSize().y(); ++yyy) {
		if (yyy != 0) {
			if (file.filePut('\n') == false) {
				anErrorEccured = false;
			}
		}
		for (int32_t xxx = 0; xxx < _inputImage.getSize().x(); ++xxx) {
			sprintf(tmp, "%02X", _inputImage.get(ivec2(xxx, yyy)).a());
			/*
			if (yyy == 25) {
				EGAMI_DEBUG(" set : " << _inputImage.get(ivec2(xxx, yyy)) << " : '" << tmp << "'");
			}
			*/
			if (file.filePuts(tmp) == false) {
				anErrorEccured = false;
			}
		}
	}
	
	file.fileClose();
	return anErrorEccured;
}
Beispiel #2
0
void ewol::resource::DistanceFieldFont::generateDistanceField(const egami::ImageMono& _input, egami::Image& _output) {
	std11::unique_lock<std11::recursive_mutex> lock(m_mutex);
	int32_t size = _input.getSize().x() * _input.getSize().y();
	std::vector<short> xdist(size);
	std::vector<short> ydist(size);
	std::vector<double> gx(size);
	std::vector<double> gy(size);
	std::vector<double> data(size);
	std::vector<double> outside(size);
	std::vector<double> inside(size);
	// Convert img into double (data)
	double img_min = 255, img_max = -255;
	for (int32_t yyy = 0; yyy < _input.getSize().y(); ++yyy) {
		for (int32_t xxx = 0; xxx < _input.getSize().x(); ++xxx) {
			int32_t iii = yyy * _input.getSize().x() + xxx;
			double v = _input.get(ivec2(xxx, yyy));
			data[iii] = v;
			if (v > img_max) {
				img_max = v;
			}
			if (v < img_min) {
				img_min = v;
			}
		}
	}
	// Rescale image levels between 0 and 1
	for (int32_t yyy = 0; yyy < _input.getSize().y(); ++yyy) {
		for (int32_t xxx = 0; xxx < _input.getSize().x(); ++xxx) {
			int32_t iii = yyy * _input.getSize().x() + xxx;
			data[iii] = (_input.get(ivec2(xxx, yyy))-img_min)/img_max;
		}
	}
	
	// Compute outside = edtaa3(bitmap); % Transform background (0's)
	computegradient(&data[0], _input.getSize().x(), _input.getSize().y(), &gx[0], &gy[0]);
	edtaa3(&data[0], &gx[0], &gy[0], _input.getSize().x(), _input.getSize().y(), &xdist[0], &ydist[0], &outside[0]);
	for(size_t iii = 0; iii < outside.size(); ++iii) {
		if( outside[iii] < 0 ) {
			outside[iii] = 0.0;
		}
	}
	
	// Compute inside = edtaa3(1-bitmap); % Transform foreground (1's)
	for(size_t iii = 0; iii < gx.size(); ++iii) {
		gx[iii] = 0;
	}
	for(size_t iii = 0; iii < gy.size(); ++iii) {
		gy[iii] = 0;
	}
	for(size_t iii = 0; iii < data.size(); ++iii) {
		data[iii] = 1 - data[iii];
	}
	computegradient( &data[0], _input.getSize().x(), _input.getSize().y(), &gx[0], &gy[0]);
	edtaa3(&data[0], &gx[0], &gy[0], _input.getSize().x(), _input.getSize().y(), &xdist[0], &ydist[0], &inside[0]);
	for(size_t iii = 0; iii < inside.size(); ++iii) {
		if( inside[iii] < 0 ) {
			inside[iii] = 0.0;
		}
	}
	
	_output.resize(_input.getSize(), etk::Color<>(0));
	_output.clear(etk::Color<>(0));
	for (int32_t xxx = 0; xxx < _output.getSize().x(); ++xxx) {
		for (int32_t yyy = 0; yyy < _output.getSize().y(); ++yyy) {
			int32_t iii = yyy * _output.getSize().x() + xxx;
			outside[iii] -= inside[iii];
			outside[iii] = 128+outside[iii]*16;
			if( outside[iii] < 0 ) {
				outside[iii] = 0;
			}
			if( outside[iii] > 255 ) {
				outside[iii] = 255;
			}
			uint8_t val = 255 - (unsigned char) outside[iii];
			// TODO : Remove multiple size of the map ...
			_output.set(ivec2(xxx, yyy), etk::Color<>((int32_t)val,(int32_t)val,(int32_t)val,255));
		}
	}
}