How to manipulate pixels of images so that it looks clearer? one simple technique is histogram equalization, but how to do this without python built in function: OpenCV?

The mapping function can be computed using a simple formula or using a lookup table for faster processing. Histogram equalization can be a useful image contrast enhancement method, particularly ...

This Python code demonstrates how to perform histogram equalization and color space conversion on an image using the OpenCV library. The code reads in an image and converts it into the HSV color space ...

It has a built-in function for histogram equalization that can be applied to any image. To use it, you need to open your image in ImageJ, and then go to Image > Adjust > Histogram Equalization.