【摘 要】
：
根据热敏文件字迹形成以后逐渐褪色变浅淡的特性,采用灰度法分别对自然保存、500W紫外光照射和50℃与70℃高温加热条件下不同时间形成的热敏文件,通过photoshop图像处理系统
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根据热敏文件字迹形成以后逐渐褪色变浅淡的特性,采用灰度法分别对自然保存、500W紫外光照射和50℃与70℃高温加热条件下不同时间形成的热敏文件,通过photoshop图像处理系统进行灰度值定量检测,考查了热敏文件在不同条件下形成时间与灰度的关系及其变化规律。
According to the characteristics of thermal document fading gradually fades after the formation of the text, using the gray method of natural preservation, 500W UV irradiation and 50 ℃ and 70 ℃ under high temperature heating conditions at different times the formation of thermal documents through photoshop image processing The gray value of the system was quantitatively tested, and the relationship between the time and the grayscale of the heat-sensitive document under different conditions was examined.
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