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.
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 film measuring point of print grain index should be made according to its light-sensitive characteristics, being the density corresponding to the 0.74 gray density of color paper when printing;
印片颗粒指数的测试点应根据彩色负片的感光特性确定，为正常扩印时对应正片0 .74中灰密度的负片密度点。
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