A method and system for color calibration or color output device
spectrophotoically measures at test target including a preselected test
color value. A multi-dimensional LUT of the device is generated
representative of the color information including the at least one
preselected color. Producing a second image width device including the at
least one preselected color located at a plurality of spatial locations
in the second image. A second sensor measures the second image and a
plurality of spatial locations having the preselected color for
generating reflectance information for the preselected color at the
plurality of spatial locations. An error is determined between the
measured color of the one preselected color and the reflectance
information at the other pixel locations. A multi-dimensional LUT is
adjusted to minimize spatial uniformity errors at the other pixel
locations, thus calibrating device color output spatially.