01-08-2019, 03:07 PM
Plenty cleaning up required but maybe something like this.
Colors -> Levels and move the left and center slider over to the right to darken the image.
Apply Filters -> Blur -> Gaussian Blur to the result . The default 1.5 is ok
Then Colors -> Threshold and move the left side slider across almost to the right side. Small values make a big difference, you can use the left side value box to fine tune.
Colors -> Levels and move the left and center slider over to the right to darken the image.
Apply Filters -> Blur -> Gaussian Blur to the result . The default 1.5 is ok
Then Colors -> Threshold and move the left side slider across almost to the right side. Small values make a big difference, you can use the left side value box to fine tune.