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how to get a uniform illumination?
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hello, i am trying to do a face detection based on skin colour and i was trying to make a uniform illumination for the images acquired through the webcam. How can I do this with help of HSV adjustments?
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Image Analyst
2016년 2월 16일
Illumination cannot be changed by software. You need things like lamps and diffusers. Simply converting to HSV or LAB color space and making the V or L channel (respectively) a uniform value does not have the same effect. Below is an image where I made the left half have the same Y value (like L or V). You can see the effect. If you would have had a non-uniform illumination, it would not flatten the image. You'd need to do background division for that.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/172896/image.png)
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Image Analyst
2016년 2월 24일
Try to do some noise reduction. For example average video frame together, or use some denoising algorithm.
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