Quick Photo Enhancement in Gimp
Sixty Second Video Tutorial
Using Gaussian Blur to Sharpen
This video uses gaussian blur on a desaturated negative layer and the hard light mode to sharpen the image, heighten colours and to bring out detail .
All in 60 seconds.
Two desaturated negatives are created, along with two copies of the original image.
one of the negative layers is blurred to a small extent and it goes above other layer. The opacity of this second layer determines the extent to which the image is sharpened.
The two originals are set to hard light and go above the negative layers. The top layer is at 100% opacity and the second layer’s opacity can be altered to regulated the overall effect.