Lighting suggestions for OpenMV

Discussion related to "under the hood" OpenMV topics.
iamseer
Posts: 5
Joined: Wed Jul 04, 2018 2:25 pm

Lighting suggestions for OpenMV

Postby iamseer » Thu Jul 05, 2018 3:43 am

Hi,

I tried to use OpenMV to guide a robot arm to pick up a coin to learn robot and computer vision. I learned that a good and stable lighting is critical for color blob tracking.
IMG_20180705_033507.jpg
IMG_20180705_033507.jpg (674.26 KiB) Viewed 100 times
I tried to add an 8 Neopixel ring which fit the lens perfectly. However, I learned that the ring adds too much light right under the camera and add almost no light 2 inches away.

I found professional lightings are huge panel or ring light with diffuser. I'm wondering do you have any recommendation for adding lighting for OpenMV?

Thanks
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kwagyeman
Posts: 2195
Joined: Sun May 24, 2015 2:10 pm

Re: Lighting suggestions for OpenMV

Postby kwagyeman » Thu Jul 05, 2018 11:53 am

Sorry, I don't. Generally you want a diffuser however. Have you tried to make your own? Like a diffuser? You can make one by just putting some transparent material over the LED ring. Otherwise, make the light source come from not on the camera?
Nyamekye,

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