Acquisition of color calibration charts

摘要

The present disclosure related to acquisition of color calibration charts. In at least some examples herein, an image of a calibration color chart is processed. A lighting condition of the color calibration chart may be automatically determined.

主权项

1. A method comprising:
automatically determining, by a processor, a lighting condition of an imaged color calibration chart acquired by an imaging device, including comparing multiple measurements of an optical property at selected spots in the imaged color calibration chart; assessing whether the determined lighting condition corresponds to a selected lighting condition that is appropriate for performing color calibration based on the acquired color calibration chart, where the selected condition is an appropriate condition if a difference between the multiple contrast measurements is below a selected threshold; and causing, by a processor, a signal via the imaging device, indicating whether the color calibration chart is imaged under the selected lighting condition.