CODEWITHSUNDEEP
c#c++cmatlabwebcam
Mav3rick
Mav3rick

Reputation: 774

How to acquire still webcam image

I need some help deciding what to use to acquire an image from a webcam. I want to acquire a single image. I know you can typically acquire a still image at a higher resolution than a single video frame.

Currently, I am using MATLAB's image acquisition toolbox.. which apparently only supports obtaining frames in video mode(so lower resolution). Which other libraries do you recommend? Has anyone else encountered this problem?

Upvotes: 2

Views: 1541

Answers (2)

Dave Tarkowski
Dave Tarkowski

Reputation: 634

Are you referring to the fact that the largest resolution reported by the Image Acquisition Toolbox is (for example) 1024x768 but the webcam claims that it can acquire 6 megapixel still images? If so, every webcam that I have ever seen has a note in very small print somewhere that explains that the higher resolution is achieved via software interpolation.

You can just acquire the image in the largest format supported by the toolbox and then use IMRESIZE to scale the image to whatever resolution that you want.

Upvotes: 2

Brad Nabholz
Brad Nabholz

Reputation: 2386

We've used WIA at work before. I can't share our code, but we basically bring up the WIA capture screen (which the user has to interact with before the image is captured). For an automated solution, have a look at this: http://www.codeproject.com/KB/cs/WebCamService.aspx

Upvotes: 1

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