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POHow to make motion history image for presentation into one single image?
 

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  1. POHow to make motion history image for presentation into one single image?
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    <p>I am working on a project with gesture recognition. Now I want to prepare a presentation in which I can only show images. I have a series of images defining a gesture, and I want to show them in a single image just like motion history images are shown in literature.</p> <p>My question is simple, which functions in opencv can I use to make a motion history image using lets say 10 or more images defining the motion of hand.</p> <p>As an example I have the following image, and I want to show hand's location (opacity directly dependent on time reference).</p> <p><img src="https://i.stack.imgur.com/0L4Ya.png" alt="an example image"></p> <p>I tried using GIMP to merge layers with different opacity to do the same thing, however the output is not good. <img src="https://i.stack.imgur.com/1eKVo.png" alt="output with gimp"></p>
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      1. POHow to make motion history image for presentation into one single image?
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      1. POHow to make motion history image for presentation into one single image?
      1. USGeorge Profenza
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    1. COI'm new to opencv, so not sure this is the best way to tackle this, but maybe you could try to loop over multiple images and adding into a single resulting one using [addWeighted](http://opencv.willowgarage.com/documentation/cpp/operations_on_arrays.html#cv-addweighted). Another idea that comes to mind is to play with a [background subtractor](http://www710.univ-lyon1.fr/~eguillou/documentation/opencv2/classcv_1_1_background_subtractor_m_o_g2.html) and the history size of it's learned background.
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      1. USGeorge Profenza
 

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