Adaptive temporal error diffusion dithering for presenting animation on electrophoretic displays

An electro-optic display comprising:

• an electrophoretic medium comprising charged pigment particles;
• a plurality of display pixels for driving the charged pigment particles between optical states, the plurality of display pixels arranged in a matrix comprising a two-dimensional array of rows and columns of display pixels;
• and
• a controller operatively coupled to the plurality of display pixels,
• wherein the controller is configured to:
• choose a size for a patch of pixel values;
• choose a size for a correlation window of pixel values;
• choose a normalized damping factor set;
• compute a quantization alignment offset;
• align a current image of an animation with the quantization alignment offset;
• align a one or more diffusion images of an animation with the quantization alignment offset;
• compute a quantum correlation matrix for the pixels in the current image;
• convert the quantum correlation matrix for the pixels in the current image into a plurality of temporal diffusion weights;
• normalize the quantum correlation matrix;
• perform spatial and temporal diffusion on the current image;
• and
• display an image of the animation based on the diffused current image.