An A3 picture of Lee. I plotted this image using three Bic Biros – one cyan, one magenta, and one yellow – having first split the image down into those three colour channels.
I rotated the yellow and magenta channel images by one degree in opposite directions that rendered each channel using vertical lines, with more vertical lines in areas where a particular tone was darker.
I then plotted each channel separately after rotating the magenta and yellow channel images again to cancel out the initial rotations and recreate the original tri-tone photo from which the plot was generated.
Material: Bic Biros on paper
Equipment used: Pen plotter; Raspberry Pi single board computer; Inkscape software to control plotter; Affinity Designer to draw lines
Size: A3
