| 摘要 |
<p>A test apparatus comprising a self illuminated light source and second moveable element having spectrophotometrically neutral gray and colour patches of predetermined hues and saturations. A digital software file provides identical spectrophotometrically neutral grayscale and colour data which, when reproduced on a monitor or projection system, should match the grayscale and test colors provided by the apparatus. When the apparatus is placed in front of the monitor image or projected image, the neutral grays and colour patches reproduced on the monitor image or projected image are compared against the image of the apparatus.</p> |
