A free image manipulation tool is available here. Its main function is to convert ordinary photos into watercolor style pictures.
The tool also provides two parameters, sigma_s and sigma_r, which allow you to adjust the transformation of the output image so that you can choose the style that suits your preference.
Examples
Here are some samples, the images on the left are the original images, and the images one the right is the output images.
Link
Click on the link bellow to try the free tool / App.
