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Merge remote-tracking branch 'upstream/3.4' into merge-3.4

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This commit is contained in:
Alexander Alekhin
2021-02-12 21:20:54 +00:00
parent ba8d20e9ae fba70f7991
commit e5d78960c6
20 changed files with 286 additions and 218 deletions
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samples/cpp/tutorial_code/ImgTrans/imageSegmentation.cpp
+7 -12
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@@ -24,23 +24,16 @@ int main(int argc, char *argv[])
return -1;
}
// Show source image
// Show the source image
imshow("Source Image", src);
//! [load_image]
//! [black_bg]
// Change the background from white to black, since that will help later to extract
// better results during the use of Distance Transform
for ( int i = 0; i < src.rows; i++ ) {
for ( int j = 0; j < src.cols; j++ ) {
if ( src.at<Vec3b>(i, j) == Vec3b(255,255,255) )
{
src.at<Vec3b>(i, j)[0] = 0;
src.at<Vec3b>(i, j)[1] = 0;
src.at<Vec3b>(i, j)[2] = 0;
}
}
}
Mat mask;
inRange(src, Scalar(255, 255, 255), Scalar(255, 255, 255), mask);
src.setTo(Scalar(0, 0, 0), mask);
// Show output image
imshow("Black Background Image", src);
@@ -124,7 +117,9 @@ int main(int argc, char *argv[])
// Draw the background marker
circle(markers, Point(5,5), 3, Scalar(255), -1);
imshow("Markers", markers*10000);
Mat markers8u;
markers.convertTo(markers8u, CV_8U, 10);
imshow("Markers", markers8u);
//! [seeds]
//! [watershed]