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Query regarding Computer Vision

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Mrinmoyee Bhattacharya
关闭： MATLAB Answer Bot 2021-8-20
Can I detect the position of still image in different state ?????Is there any example ???
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Mrinmoyee Bhattacharya
Mrinmoyee Bhattacharya 2018-11-30
In this attachment i have given some wind speed image. Yellow points represents wind speed. After seeing you will understand what i want to say. i just want to track the position of wind speed using computer vision or machine learning or anything, which will say the position of the wind speed
Walter Roberson
Walter Roberson 2018-11-30
You talk about having "still images". But note that all that a "movie" is, is a series of still images in time lapse.

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Image Analyst
Image Analyst 2018-11-30
There is not much that can be done with your PDF document of map line drawings that you uploaded. It's pretty much useless. But you said you have images of wind speed, like where each pixel represents some number of km per hour at that location. So all you have to do, if you want the centroid location, is to threshold the windspeed image and find the centroid
binaryImage = windSpeedImage > someThreshold; % For example someThreshold = 150 km per hour or whatever.
binaryImage = bwareafilt(binaryImage, 1); % Take just the largest blob.
props = regionprops(binaryImage, 'WeightedCentroid', 'Centroid');
By computing the distance between centroids at those different time point images, you can find out how fast the centroid moves (average velocity) from one time to the other.
See My File Exchange for a full tutorial on image segmentation.

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