附录 > 词汇表

噪点

PAL(逐行倒相)

数码影像中的可能显示为位置错误或随机的明亮的错误像素。当相机以

是一种被非洲、亚洲、欧洲以及中东多数国家采用的视频颜色编码标

高感光度拍摄照片、或以在黑暗场所自动设置的感光度拍摄照片时,

准。

 

 

容易产生噪点。

 

 

 

NFC(近距离无线通信)

画质

 

 

数码影像中使用的压缩率的一种表达方法。画质越高的影像,压缩率越

 

NFC 是用于距离非常近的无线通信的一套标准。可以使用已启用 NFC

低,通常文件也就越大。

的设备来启动功能或与其他设备交换数据。

 

 

 

 

RAW

CCD

 

NTSC((美国)国家电视标准委员会)

 

原始数据)

从相机图像传感器直接收集的未经处理的原始数据。在将图像压缩成标

 

是一种广泛应用于日本、北美、菲律宾、南美、韩国以及中国台湾的视

准文件格式之前,可以利用编辑软件对图像的白平衡、对比度、饱和

频颜色编码标准。

度、鲜明度以及其他数据进行处理。

光学变焦

分辨率

 

 

这是一种可以用镜头放大影像而不降低影像画质的普通变焦。

数码影像中显示的像素数。高分辨率的影像含有更多的像素,而且通常

 

会比低分率的影像显示更多的细节。

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