一副彩色静态图像（RGB），设分辨率为256×512,每一种颜色用8bit表示，则该彩色静态图像的数据量为_______。

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【单选题】【消耗次数：1】

① 512×512×3×8bit

② 256×512×3×8bit

③ 256×256×3×8bit

④ 512×512×3×8×25bit

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