archive-gh-me/node-opencv
1
0
Fork 0
mirror of https://github.com/peterbraden/node-opencv.git synced 2025-12-08 19:45:55 +00:00
Code Issues Projects Releases Wiki Activity

~example fixed

Browse Source
This commit is contained in:
Dmitry Ivanovm 2017-03-08 16:40:59 -05:00
parent 9edf312229
commit 833c81d596
1 changed files with 19 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
examples/optical-flow.js
View File

@ -35,6 +35,9 @@ cap.read(function(err, firstFrame) {
cap.read(function(err, newFrame) { cap.read(function(err, newFrame) {
if (err) throw err; if (err) throw err;
var frameSize = newFrame.size();
if ( frameSize[0] > 0 && frameSize[1] > 0) {
var goodFeatures = old_frame.goodFeaturesToTrack(feature_params.maxCorners, feature_params.qualityLevel, feature_params.minDistance); var goodFeatures = old_frame.goodFeaturesToTrack(feature_params.maxCorners, feature_params.qualityLevel, feature_params.minDistance);
// calculate optical flow // calculate optical flow
@ -48,12 +51,15 @@ cap.read(function(err, firstFrame) {
out.line(flow.old_points[i], flow.new_points[i], color); out.line(flow.old_points[i], flow.new_points[i], color);
} }
} }
/* /*
window.show(out); window.show(out);
window.blockingWaitKey(0, 50); window.blockingWaitKey(0, 50);
*/ */
old_frame = newFrame.copy(); old_frame = newFrame.copy();
read(); read();
}
}); });
} }