Improving Illumination in Night Time Images opencv

[satya]

Hi friends,

can anybody help with c++ algorithm for low light enhancement of image using opencv

[crackwitz]

“algorithms” can’t add information. what isn’t there can’t be added from thin air.

if you need better images, you need more “exposure”.

explain your situation.

[Eduardo]

Have a look at this tutorial:

• Understanding color & the in-camera image processing pipeline for computer vision, Michael S. Brown, ICCV 2019 Tutorial

[satya]

Hi,

I am taking picture from camera in night mode for eye image medical i want to show some clarity of that image to visible

[AbsurdePhoton]

Have a look here : Improving Illumination in Night time Images

Even better, this one uses a retinex algorithm : GitHub - dengyueyun666/Image-Contrast-Enhancement: C++ implementation of several image contrast enhancement techniques. (look for ‘adaptiveImageEnhancement’). The author uses the HSV color space, but I found that using OKHSV (not yet in OpenCV, I’m using my own implementation) gave even better results.