Results image contrast and film image density is quickly adjusted by mechanism of automatic exposure control to optimize imaging.

结果自动曝光控制机构迅速调整对比度和胶片影像密度，使成像结果最佳。

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Method: Three different exposure conditions were used and the density of CT radiographs obtained was measured and compared with traditional screen film image.

方法：选择三组不同曝光条件照射、制定标准测试点通过仪器对影像密度测试，并与普通屏—片进行对照、综合评价。

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In this paper, we analyses the relation between the density of black-white film and the color of a pseudocolor image as the results of our experiments.

本文分析了在黑白图象假彩色编码中的密度与彩色的对应关系。

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