X-Git-Url: http://www.fmaj7b5.info/git?p=cuda.git;a=blobdiff_plain;f=binarize%2Fbinarize.cpp;fp=binarize%2Fbinarize.cpp;h=940132e54fe1dc5991bcc99944b2479ab59da9c6;hp=0000000000000000000000000000000000000000;hb=7b77a912a4a1202f677ae9dbff672758e2b945e4;hpb=8b2c111ed060599c6bc93b48732d36f8aa48eb2b

diff --git a/binarize/binarize.cpp b/binarize/binarize.cpp
new file mode 100644
index 0000000..940132e
--- /dev/null
+++ b/binarize/binarize.cpp
@@ -0,0 +1,69 @@
+/*
+	Copyright (C) 2012  fmaj7b5.info
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// binarize.cpp : ƒRƒ“ƒ\[ƒ‹ ƒAƒvƒŠƒP[ƒVƒ‡ƒ“‚̃Gƒ“ƒgƒŠ ƒ|ƒCƒ“ƒg‚ð’è‹`‚µ‚Ü‚·B
+//
+
+#include "stdafx.h"
+
+#include "Image.h"
+#include "ImageIO.h"
+
+#include "binarize.h"
+
+using namespace FM7b5;
+
+static void binarize_cpu(ImageGray& out, const ImageGray& in, const uint8_t thres = 128);
+
+int _tmain(int argc, _TCHAR* argv[])
+{
+	const uint8_t thres(128);
+	ImageGray image;
+
+	try {
+		image = loadPGM("..\\img\\sine.pgm");
+	}
+	catch (std::exception& e)
+	{
+		std::cout << e.what() << std::endl;
+		return -1;
+	}
+
+	ImageGray out(image.width(), image.height());
+	binarize_cpu(out, image, thres);
+	savePNM(out, "result_cpu.pgm");
+
+	ImageGray out_gpu(image.width(), image.height());
+	binarize_gpu(out_gpu, image, thres);
+	savePNM(out_gpu, "result_gpu.pgm");
+
+	return 0;
+}
+
+void
+binarize_cpu(ImageGray& out, const ImageGray& in, const uint8_t thres)
+{
+	if (in.width() != out.width() || in.height() != out.height()) {
+		throw std::runtime_error("sizes of input and output images are diferent.");
+	}
+
+	for (size_t h = 0; h < in.height(); ++h) {
+		for (size_t w = 0; w < in.width(); ++w) {
+			out(w, h) = (in(w, h) < thres) ? 0 : 255;
+		}
+	}
+}