1. A method for initially calibrating an image capture device, comprising: receiving a captured image of at least one test target; resolving the captured image; determining at least one sharpness index based on the resolved image, wherein the at least one sharpness index is determined without matching the captured image to the at least one test target; determining a cost function based on the at least one sharpness index; minimizing the cost function to determine sharpness parameters; and storing the sharpness parameters for use by the image capture device.