| 释义 |
chromogram|ˈkrəʊməgræm|
[f. chromo- 2 + -gram.]
A combination of three photographs taken by a special process, which being superposed produce an image in the natural colours of the object. (Cf. heliochrome.)
1893Jrnl. Soc. Arts 19 May 663 The heliochromoscope and its triple photograph, or chromogram. 1893Daily News 18 May 6/7 It was necessary..to provide a special optical lantern for superposing on the screen the three images of the chromogram. 1894Amer. Ann. Photogr. 208 The word chromogram designates the combination or the ensemble of three diapositives made from negatives representing the action of the blues, yellows, and greens respectively of the original. |