词汇表

图像传感器

数码相机中包含图像中每个像素各自的像点的物理部件。每个像点记录着 曝光时射到该点的光线的亮度。普通的传感器类型有 CCD(电耦合元件) 和 CMOS(互补金属氧化物半导体)。

ISO 感光度

相机对光线的敏感度,与胶片相机中使用的胶片速度等同。ISO 感光度的 设置越高,相机可使用越快的快门速度,这样可以减少由于相机抖动和光 线不足引起的模糊。然而,影像的感光度越高就越容易产生杂点。

JPEG(联合图像专家组)

数码影像的有损压缩方式。压缩成 JPEG 图像时,在尽可能避免降低图像 分辨率的同时降低图像的整体文件大小。

LCD(液晶显示屏)

电子消费品中广泛使用一种视觉显示屏。该显示屏需要独立的背光,如

CCFL LED 来再现色彩。

微距

利用该功能可以拍摄微小对象的近距离照片。使用微距功能时,相机可以 对微小对象以接近实物的比例 (1:1) 进行鲜明的对焦。

测光

测光是指相机测量曝光光量的方法。

MJPEG(联合活动图像专家组)

一种压缩为 JPEG 图像的视频格式。

NFC(近距离无线通信)

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 的 设备来启动功能或与其他设备交换数据。

噪点

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,容易产 生噪点。

OIS(光学图像稳定)

此功能可对拍摄时产生的晃动或抖动实时进行补偿。相对于数字图像稳定 功能而言,它不存在画质下降。

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Samsung EC-WB380FBPBE1, EC-WB380FBPWE1 manual Iso 感光度

EC-WB380FBPBE1, EC-WB380FBPWE1 specifications

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