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1 数字图象 数字图象是以数字电信号的形式记录在磁带、磁盘、或光盘上的电信号,使用时需要进行电信号还原,然后才能在显示器上观看到图象。数字图象有连续数字图象和静止数字图象两种形式,连续数字图象播出的图形和普通模拟录放机播出的图象一样是连续的画面,但比普通模拟信号的干扰小,图象更清晰。而静止图象显示出来是一幅一幅独立不连续的图片,这些图片资料以文件形式用数字信号储存起来,目前主要用于网页制作、图象设计、多媒体制作等。
1 digital image Digital image digital signal is recorded in the form of electrical signals on a magnetic tape, disk, or optical disc, the use of the need to restore the electrical signal, and then can view the image on the monitor. Digital images have two forms of continuous digital images and still digital images, continuous digital video broadcast graphics and ordinary analog video recorder broadcast the same image is continuous, but less interference than the average analog signal, Image clearer. The still image is displayed as an independent and discontinuous picture. The picture information is stored in the form of a digital signal and is mainly used for webpage making, image design and multimedia production.