实际测试和观测比较表明，所测彩色负片印片颗粒指数数值与其扩印效果相符合，印片颗粒指数方法能够反应彩色负片颗粒性的实用效果。
The results give the measuring accuracy and coincidence between the print grain index values and the perceptible graininess on the prints, proving the efficiency of the method.
◎ 具有倒像、镜像、负片等多种图像效果处理；
Multiple processing function of Downfallen image, mirror image and negative.
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