接下来是1931年，专辑《克里·奥尔狂想曲》发布，我们从中能够感受到艾灵顿在曲调和节奏风格上的转变，如同画家调色板上色调的变换一样。
We reached 1931 with Creole Rhapsody, which reflected Ellington's command of the tonal and rhythmic resources of his band as if they were colours on a painter's palette.
20世纪70年代最潮的用色方式就是在色调上的变换——将一个颜色的不同色度应用在墙面、天花板和木制品上。
The most fashionable way to colour in the 1970s was tonally - several shades of the same colour applied to walls, ceiling and woodwork.
水印的提取过程只需对含有水印信息的半色调图像进行光学或数字的傅里叶变换即可完成。
The watermark can be retrieved by using either optical or digital Fourier transform on halftone images containing the watermarked information.
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