检测部位 | 样品 | L* | a* | b* |
正面 | 纸张 | 409.645 | −34.609 | 53.942 |
1号印泥 | 81.779 | 91.397 | 114.112 | |
2号印泥 | 92.370 | 87.090 | 92.924 | |
黑笔 | 31.960 | 0.349 | −1.222 | |
蓝笔 | 66.291 | −4.768 | −28.778 | |
黑–先字后章 | 24.234 | 31.738 | 39.183 | |
黑–先章后字 | 34.447 | 43.492 | 55.761 | |
蓝–先字后章 | 54.079 | 33.379 | 6.251 | |
蓝–先章后字 | 39.416 | 43.543 | 28.235 | |
反面 | 纸张 | 409.645 | −34.609 | 53.942 |
1号印泥 | 91.943 | 83.741 | 84.690 | |
2号印泥 | 72.583 | 72.541 | 78.830 | |
黑笔 | 42.684 | 0.635 | 2.852 | |
蓝笔 | 53.903 | −1.767 | −27.119 | |
黑–先字后章 | 29.133 | 36.212 | 36.687 | |
黑–先章后字 | 43.633 | 53.556 | 70.779 | |
蓝–先字后章 | 58.426 | 54.443 | 47.313 | |
蓝–先章后字 | 46.325 | 45.428 | 32.376 |