最新照片打印不完全手册.doc

照片打印不完全手册
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the4
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
　　热升华打印机可以直接表现色彩的浓淡；新款的喷墨打印机也能够自动调整墨滴大小，用墨滴的不同配比来表现画面层次；印刷制版需要“挂网〞，网点密度是固定的，高精度的原始照片才能保证挂网后的效果，因此，打印机对原始照片的精度要求相比照印刷制版要低。打印输出结果是否“足够〞清晰，与人们的观看距离密切相关，越是幅面小的照片，人们的观看距离越近，就需要越高的图像精度。例如，明信片大小的照片，可能需要250PPI看上去才足够清晰，而A4幅面的照片，如果图像精度到达180PPI，效果就相当不错了，放在建筑外墙的巨幅广告，可能只需要30PPI。那么，是否像素数越高，打印效果就越好呢？也不尽然，高精度的照片输出成小幅面，打印机并不一定能很好表现每一个像素点的色彩，打印效果反而可能劣化，而且，由于数据量庞大，会严重影像处理速度，一般而言，高于300PPI的精度完全没有必要。根据经验，我们总结出下表的数据。
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the4
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and