Tarp filter

An adaptive filter system comprising:

• a learning rate component that stores a learning rate parameter;
• an observed value component that provides an observed values of coefficients;
• a previously coded values component that stores previously computed probabilities;
• and
• an estimator that generates probabilities for the coefficients as a function of a learning rate parameter, the observed values, the previously computed probabilities and distances of the previously computed probabilities.

An adaptive filter system comprising:

• a first filter that processes lines of an image, respective lines comprising coefficients, the coefficients having a probability computed as a function of a probability of a previous pixel;
• a second filter that processes columns of the image, the probability of coefficients being updated as a function of the probability of above pixel;
• and
• a third filter that processes the lines of the image after the coefficients of that line have been processed, and in an opposite direction of the first filter, the probability of coefficients being updated as a function of the previous pixel.