Effective color CRT calibration techniques for perception research

We present a method of CRT calibration useful for the efficient examination of a wide range of hypotheses about human color perception. We take advant age of the local linearity of gamma correction in cases in which the stimul us colors for an experiment lie in a limited region of color space (or in a limited number of small regions). This situation is quite common in thresh old experiments. In many cases complete monitor calibration is unnecessary and inefficient. Often when only a few colors are needed in an experiment t hey will be calibrated individually. However, explicit calibration of every necessary stimulus color limits the range of experiments that can be perfo rmed. Our method allows for an efficient intermediate option. (C) 1999 Opti cal Society of America [S0740-3232(99)01906-7] OCIS codes: 330.1730, 330.55 10, 330.1710.