Show-through cancellation using Kalman filter with colored driving source in duplex scanning

We present a show-through cancellation method using the Kalman filter with colored driving source in duplex scanning. The remarkable feature of the proposed method is reduced show-through effect without sacrificing quality of the original image using the canonical state space model with (i) a state equation composed of the front-side original image, and (ii) an observation equation composed of the front and back side original images, transmittance of paper, and show-through point spread function. Simulation result shows that this proposed method can remove show-through effectively.