An example image processor for processing pixels includes processing circuitry configured to determine that a first subset of input bits of a current pixel are the same as a first subset of input bits of a previously processed pixel, selectively bypass processing the first subset of input bits through a first pipeline based on the determination, output a first subset of output bits of the previously processed pixel as a first subset of output bits of the current pixel based on the determination, and merge the first subset of output bits of the current pixel with a second subset of output bits of the current pixel generated through a second pipeline from a second subset of input bits of the current pixel.