数字照相机是一种无胶片照相机,它打破了扫描仪捕获图像输入到计算机中去的垄断地位。 在数字照相机中,可视的记录部件不是胶卷,而是一个或多个线性的、或矩形的电荷藕合器件阵列。它用来记录可视信息的象素数目,直接与电荷藕合器件中的单元(即光敏二极管)数有关。几年前,各种数字照相机每幅图像只有数十万个象素,而35毫米照相机中的细粒胶片的分辨率就可达二千万象素,用这类低档照相机捕捉的图像只能适用 A digital camera is a filmless camera that breaks the monopoly of the scanner capturing images that are input into a computer. In digital cameras, the visible recording component is not a film but one or more arrays of linear, or rectangular, charge-coupled devices. It is used to record the number of visual information pixels, directly with the charge-coupled device unit (ie photodiode) number. A few years ago, digital cameras had only hundreds of thousands of images per image, while fine-grained films in 35-mm cameras had resolutions up to 20 million pixels. Images captured with such low-end cameras were limited Be applicable