Drag and drop an image into this box to process it: Greyscale: Level steps: 2 3 4 5 6 Line alpha: 0.05 0.1 0.2 0.5 Line thickness: 0.5 1 2 3 5 10 Line density: 0.25 0.5 1 Lightness: 1 2 4 8 Edge thickness: 2 3 5 10 Edge amount: 0 0.5 1 2