“image discrete cosine transform，DCT”的概念、定义、翻译、参考文献-科学参考

单词	image discrete cosine transform，DCT
释义	image discrete cosine transform，DCT Encyclopedia 工学遥感图像变换释 image discrete cosine transform，DCT图像离散余弦变换与图像离散傅里叶变换相关的变换方法。类似于离散傅里叶变换（discrete Fourier transform，DFT），但是只使用实数。
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