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单反相机噪点

更新时间: 2020-07-13 00:00:00     

噪点主要是指CCD和CMOS感光元将光线作为接收信号并输出的过程中所产生的图像中的粗糙部分,也指图像中不该出现的外来像素,通常由电子干扰产生。看起来像图像被弄脏了,布满一些细小的糙点。平时所拍摄的数码照片如果用个人电脑将拍摄到的高画质图像缩小以后再看,可能就注意不到。但如果将原图像放大,就会出现本来没有的颜色,也称为假色,这种假色就是图像噪音。

关键词: 相机

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