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Pre-Process frame captured from camera

May 10, 2013 - 7:04am #1

Hi,

I have a problem with tracking Image Target with bad light condition (ambient where I'm tracking the image target is quite obscure)...

My question: is possibile to pre-process the frame captured from camera and then give it back to Vuforia for the recognition ? With an appropriate filter applied to the camera frame, I think I can increase contrast between background and image target and so increase the recognition level.

 

Thanks in advance

Pre-Process frame captured from camera

March 1, 2015 - 11:28pm #8

Adjusting camera frame light (e.g. through pre-processing of the frame) is not supported in Vuforia 4.0.

One option would be to enable the Flash Torch, if working in low lighting conditions, via the SetFlashTorch() method of the CameraDevice class.

 

 

 

Pre-Process frame captured from camera

March 1, 2015 - 10:15am #7

Hello!

does this supported with your new sdk ? 

To adjust camera frame light like the image target? or is it possible to do ? 

Thank you.

Pre-Process frame captured from camera

July 1, 2013 - 1:38pm #6

Hi, you should probably ask this question in the Metaio website, not here.

 

Pre-Process frame captured from camera

July 1, 2013 - 12:20pm #5

Does Metaio have this feature, i.e. the pre-processing of the image on-the-fly?

Anybody's input is appreciated!

 

Pre-Process frame captured from camera

May 11, 2013 - 1:58am #4

you're welcome

Pre-Process frame captured from camera

May 10, 2013 - 9:20am #3

Ok,

thanks alot for your reply, you saved my time :)

 

Regards

Pre-Process frame captured from camera

May 10, 2013 - 7:57am #2

Hi,

 

If the environment is in low lighting conditions, have you tried using the Flash torch ?

if not, you may want to check the Image Targets sample which shows how to enable Flash.

 

Otherwise, what you suggest is very interesting (image pre-processing),  but it is not supported by the current SDK.

I would encourage you to post it in our Wish list section:

https://developer.vuforia.com/forum/general-discussion/wish-list

 

 

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