For these images i wanted to create images similar to Andy Warhol’s Screen prints like his Campbells soup cans. When creating these images I wanted to produce a printed like effect.
Steps to Create this effect:
Start by turning the image into a layer and then Duplicating the image. 
Select one of the layers, then click on Threshold 
Then adjust the threshold so that the main features are still intact
(text or shapes)
Finally select the other layer which is the original image. Then click on opacity bringing it down so that there is a faint colour.