How to reduce the number of colors in an image with OpenCV?

题

I have a set of image files, and I want to reduce the number of colors of them to 64. How can I do this with OpenCV?

I need this so I can work with a 64-sized image histogram. I'm implementing CBIR techniques

What I want is color quantization to a 4-bit palette.

没有正确的解决方案

许可以下： CC-BY-SA 和归因