error using blobAnalysis/step
3 views (last 30 days)
Show older comments
filename = '../dataset/video.avi';
hsrc = vision.VideoFileReader(filename,'ImageColorSpace','RGB','VideoOutputDataType','uint8');
% ------------------------------------------------------------------------------------------
blobAnalysis = vision.BlobAnalysis('BoundingBoxOutputPort', true, ...
'AreaOutputPort', true, 'CentroidOutputPort', true, ...
'MinimumBlobArea', 50);
se = strel('square',3);
% -------------------------------------------------------------------------------------------
% Create background/foreground segmentation object
hfg = backgroundSubtractor(algorithm);
disp('Starting...');
frameCnt = 1;
while ~isDone(hsrc), %disp(frameCnt)
% Read frame
frame = step(hsrc);
% Compute foreground mask and background model
[fgMask, bgModel] = getForegroundMask(hfg, frame);
%--------------------------------------------------------------------------
filteredForeground = imopen(fgMask, se);
bbox = step(blobAnalysis, filteredForeground);
result = insertShape(hsrc, 'Rectangle', bbox, 'Color', 'green');
numCars = size(bbox, 1);
result = insertText(result, [10 10], numCars, 'BoxOpacity', 1, ...
% 'FontSize', 14);
%--------------------------------------------------------------------------
% View results
subplot(2,3,1), imshow(frame,'InitialMagnification','fit');
subplot(2,3,2), imshow(filteredForeground,'InitialMagnification','fit');
subplot(2,3,3), imshow(bgModel,'InitialMagnification','fit');
subplot(2,3,4), imshow(fgMask,'InitialMagnification','fit');
pause(0.01);
% Reset background model
% This step just demonstrates how to use reset method
if (frameCnt==5)
%reset(hfg);
%break;
end
frameCnt = frameCnt + 1;
end
disp('Finished!');
release(hfg);
release(hsrc);
0 Comments
Answers (0)
See Also
Categories
Find more on Tracking and Motion Estimation in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!