mirror of
https://github.com/opencv/opencv_contrib.git
synced 2025-10-21 23:01:45 +08:00
bebfd71748
ximgproc: [niBlackThreshold] add R parameter for Sauvola's method * added R parameter to niBlackThreshold * replace tab to 4 spaces * add niblackThreshold test (sauvola) * changed test case of sauvola * Update modules/ximgproc/include/opencv2/ximgproc.hpp
30 lines
945 B
C++
30 lines
945 B
C++
// This file is part of OpenCV project.
|
|
// It is subject to the license terms in the LICENSE file found in the top-level directory
|
|
// of this distribution and at http://opencv.org/license.html.
|
|
#include "test_precomp.hpp"
|
|
|
|
namespace opencv_test { namespace {
|
|
|
|
TEST(ximgproc_niBlackThreshold, sauvola)
|
|
{
|
|
Mat src = (Mat_<uchar>(3, 3) << 1, 1, 1, 2, 2, 2, 3, 3, 3);
|
|
Mat dst;
|
|
cv::ximgproc::niBlackThreshold(src, dst, 255, THRESH_BINARY, 3, 1, BINARIZATION_SAUVOLA, 1);
|
|
|
|
EXPECT_EQ(CV_8U, dst.type());
|
|
EXPECT_EQ(3, dst.rows);
|
|
EXPECT_EQ(3, dst.cols);
|
|
|
|
EXPECT_EQ(0, dst.at<uchar>(0, 0));
|
|
EXPECT_EQ(0, dst.at<uchar>(0, 1));
|
|
EXPECT_EQ(0, dst.at<uchar>(0, 2));
|
|
EXPECT_EQ(0, dst.at<uchar>(1, 0));
|
|
EXPECT_EQ(0, dst.at<uchar>(1, 1));
|
|
EXPECT_EQ(0, dst.at<uchar>(1, 2));
|
|
EXPECT_EQ(255, dst.at<uchar>(2, 0));
|
|
EXPECT_EQ(255, dst.at<uchar>(2, 1));
|
|
EXPECT_EQ(255, dst.at<uchar>(2, 2));
|
|
}
|
|
|
|
}} // namespace
|