只需几分钟时间,便能让一张普通的照片摇身一变,仿佛来自往昔的画面。在衡量相机的成像质量时,影像噪点是非常重要的指标之一。自摄影术发明以来,技术的发展已经到了令人叹为观止的水平。影像感应器的敏感度,是胶片所无法企及的。当我们把一张用数码单反相机在ISO 1600感光度下拍摄的照 Just a few minutes, you can make an ordinary photo transformed, as if from the past picture. Image noise is one of the most important metrics when measuring the camera’s image quality. Since the invention of photography, the development of technology has come to an astonishing level. The sensitivity of the image sensor is unmatched by the film. When we take a picture taken with a digital SLR camera at ISO 1600 speed