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In this tutorial, we will transform a portrait photo into a pop art style image in Photoshop Cs5. This effect is reminiscent of the Andy Warhol paintings helped popularized this pop art style.
Increase Brightness and contrast
Apply Threshold adjustment layer
Fill in imperfections with the lasso tool and black fill.
Paint or Lasso in colors and set layer to multiply blending mode to color in the white portions while leaving the black outline.
Crop and clean up as necessary!