[ Thanks to Michael for this link.
]
“Lomography is most commonly recognised in old film
photographs and is used aesthetically in photographs. I will show a
quick process to achieve this “Lomo” effect in GIMP!“1. Starting
* Choose your image and open it in GIMP
* Now go, Colors –> Curves – This is the basis of the
Lomo-Effect, these adjustments will change the colours:
* You click on the Channel tab to change between channels
* Do “S” curves on all, except the Blue Channel:
* Value/RGB Channel – “S” Curve, as shown:”