you’re left with a negative image of white (or whatever color the blueprint paper originally was) against a dark blue background. The technique was faster and more cost-effective than hand ...

Photoshop tutorial showing how to transform a photo of a building, car or anything else into an architect's blueprint drawing. Paper texture: <a href=" Marks & Scratches brushes: <a href=" Subscribe ...

you’re left with a negative image of white (or whatever color the blueprint paper originally was) against a dark blue background. You see, the chemicals react and makes the paper blue.