A reduced number of DCT coefficients is computed in a subsequent inverse DCT computation based on the DCT block type.
而根据此离散馀弦转换区块形式则在后续的反向离散馀弦转换运算中运用较少个数之离散馀弦转换系数来做计算。
The algorithm separates DCT coefficients into three parts: DC coefficients, even and odd indexed DCT coefficients.
算法将DCT系数分成三部分：DC分量、偶下标分量和奇下标分量。
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