Programmable crossbar signal processor used in image processing

A method comprising:

• storing first two-dimensional binary data in the form of high or low resistance states into a first crossbar array with a programmable material layer;
• transforming the first two-dimensional binary data into first one-dimensional analog data via the first crossbar array;
• storing second two-dimensional binary data in the form of high or low resistance states into a second crossbar array with a programmable material layer;
• transforming the second two-dimensional binary data into second one-dimensional analog data via the second crossbar array,
• storing third two-dimensional binary data in the form of high or low resistance states into a third crossbar array with a programmable material layer;
• transforming the third two-dimensional binary data into third one-dimensional analog data via the third crossbar array;
• storing fourth two-dimensional binary data in the form of high or low resistance states into a fourth crossbar array with a programmable material layer;
• and
• transforming the fourth two-dimensional binary data into fourth one-dimensional analog data via the fourth crossbar array wherein the first two-dimensional binary data is the complement of the second two-dimensional binary data, the third two-dimensional binary data is the complement of the fourth two-dimensional binary data, and the first two-dimensional binary data is the transpose of the third two-dimensional binary data.

A method comprising:

• storing two-dimensional binary data in the form of high or low resistance states into a crossbar array with a programmable material layer;
• transforming the two-dimensional binary data into one-dimensional analog data via the crossbar array;
• and
• using the one-dimensional analog data for pattern comparison, pattern location, or pattern tracking.