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How to decrease and interpolate an image/video

asked 2013-03-26 09:39:36 -0500

Jack Chung gravatar image

Hello,

How can I decrease one image/video and interpolate it?

There is any library?

Thanks, Regards.

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What do you mean by decrease? Size, resolution, quality? It may be weight or length?

sammy gravatar imagesammy ( 2013-03-26 11:59:11 -0500 )edit

I intend to do a project in my university, and the project is a POV Display: http://www.youtube.com/watch?v=QAGnpKz7zvY

I will do with a 32 LED RGB, and to send any image/video i will need to decrease the image, but decreasing it, probably it will get a bad quality to see and understand something, tha's why I need to interpolate too, so I think it need to decrease the size and interpolate to get some quality.

It's difficult to explain it, did you understand something that I said?

Jack Chung gravatar imageJack Chung ( 2013-03-27 11:53:00 -0500 )edit

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answered 2013-03-26 11:24:08 -0500

It is actually simple, read in the frames, one by one, and than save them into a compressed format. For video this can be motion JPEG, for imagery it can be JPEG.

Just look at the video and image reading and writing interfaces at the docs : docs.opencv.org

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Asked: 2013-03-26 09:39:36 -0500

Seen: 190 times

Last updated: Mar 26 '13