Install smartshine by entering the following commands in the terminal:
sudo apt update sudo apt install smartshine
Description:
Automatic photo adjusting software
The program analyzes the histogram of the image and tries to set the most optimal black and white point of the image. Removes the veiled effect caused by the shifted colors, adjusts the color balance and saturation, and corrects the gamma factor.
Homepage: https://launchpad.net/smartshine
Version: 0.36-0ubuntu4
Section: universe/graphics