There is provided a signal processor including correction circuitry configured to correct a signal for each color input to the signal processor and to output the corrected signal for each color, first conversion circuitry configured to receive the corrected signal for each color, to perform first image processing on each corrected signal for each color, and to generate a first signal having a first color gamut for each color, second conversion circuitry configured to receive the corrected signal for each color, to perform second image processing on each corrected signal for each color, and to generate a second signal having a second color gamut for each color, where the signal processor outputs a first image data having a first color gamut and a second image data having a second color gamut from same corrected signals for each color.

A method of calibrating a beam scan field of an additive manufacturing machine in which a radiant energy beam is used to selectively melt material to form a workpiece, the method including: using a radiant energy source, directing a beam using a steering mechanism so as to create a calibration build job on a substrate, the calibration build job including at least one measurement artifact created by the beam; using a calibrated camera, collecting an image of the calibration build job; generating a set of measurements of the calibration build job from the image; comparing the measurements to a standard; in response to the measurements deviating from the standard by more than a predetermined acceptable tolerance, adjusting the steering mechanism; wherein the steps of directing, collecting, generating, comparing, and adjusting are carried out in response to automated commands from an electronic controller.