| 摘要 |
A method is disclosed for recording ambient lighting conditions from a reference card using a digital camera to record a spectral response of the reference card to enable a digital photograph to be white balanced. The method can include the operation of providing a substrate to carry a reference surface. A highly polished material can be applied over the substrate to form a reference card having a highly polished surface. The reference card can be photographed with the digital camera to record the ambient lighting conditions.
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