Question about the vision.BlobAnalysis

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Akira Chan 2015-7-20

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/230448-question-about-the-vision-blobanalysis

Thanks to the helpful community, I have understood what have to be done when several parameters was set to TRUE state. All the results is as expected but a new problem have occurred.

blob = vision.BlobAnalysis('CentroidOutputPort',  true, 'AreaOutputPort',... 
true,'BoundingBoxOutputPort', true,'MinimumBlobAreaSource', 'Property',... 
'MinimumBlobArea', 15000);

Where these three are true, [area, centroid, bb] must be written. Now, I got what I wanted but when I apply it and I only can get one results at a time like,

result = step(markInserter, frame, centroids);
result = step(TextInserter, frame, area);

Is there a better method to make it in such a way that I can produce a result where the area, bounding box and the centroid appear at the same time at the same video? Thank you very much.

Regards, Akira