How to Create an evocative and grainy photo
1 Choose carefully
This photograph is a great candidate for a monochromatic finish. The subject’s pose as well as the strong contrast that’s resulted from the rather harsh light in which the person was photographed make it a good choice.
2 Can the colour
The first step is to convert the photo to black and white. Click the Adjustment tab and then click Black & White to open the monochromatic channel mixer. Because this is added as an adjustment layer, all your changes are undoable.
3 Change the channel
Here, the subject isn’t the main issue, rather it’s the background that is. It isn’t too distracting because of the panned exposure, but by pulling back the mixer’s cyan and blue sliders we’re able to darken it somewhat.
4 Be selective
If, once you’ve converted to black and white, you lose track of which parts of your image are which colour, click Picker in the mixer, then click the area of your image to change. This will change the value of that colour throughout.
5 Bring on the noise
Happy with your mono shot? Select your main image layer, then pick Layer > New Live Filter Layer > Add Noise Filter. Use ç++ to zoom in to your image, and make sure you’re not adding too much noise as you drag the Intensity slider.
6 Keep tinkering
Close the Live Add Noise window when you’re done. Note that your image now has extra layers for the black and white treatment and the live filter layer. You can double-click either of them to change its settings in the future.