Apply noise to a digital image
1To make my brushes feel more traditional I access the Brush palette. Creating a brush from a brush stroke ( 1) helps to get rid of the digital-looking round shapes of the standard Photoshop brushes. I also turn on Shape Dynamics and apply a texture (2) to it.
2To add noise, I create a new layer, fill it with a neutral grey (RGB: 125,125,125) and click Filter >Noise >Add Noise (about 50 per cent), followed by Filter> Filter Gallery> Brush Strokes> Spatter. Finally, I set my layer to Soft Light and adjust its Opacity to 20 per cent.
3I try to hold off using noise until the end of the painting process. If I add it too soon, it obscures my vision for the brush strokes underneath. I’m also careful not to overdo effects such as these. Using these techniques results in a painting that’s 20 per cent more traditional looking!