Alpha Channel

基本解释

Of course you can do better with the corresponding slider, but with this technique we can change every Map To channel - not just Alpha.
当然你可以使用相关的滑块作的更好，但使用这个技术我们可以修改通道的每个映射-而不仅仅是Alpha。
We couldn't manage this aspect during post production, because there would have been lot of problems with alpha channel on the leaves of the background trees.
在后期制作中我们不能达到这一点，因为在背景树的树叶上阿尔法通道会出现很多问题。
He also remarked WebP’s lack of some features such as color representation “other than 4:2:0 YCrCb”, “EXIF data and ICC color profiles”, and alpha channel support, which is also not supported by JPEG.
他还认为WebP缺乏某些特性，如除“4:2:0 YCrCb”之外的色彩表示、“EXIF数据和ICC色彩描述”、Alpha通道——不过JPEG也不支持这些特性。

Others may need medications like calcium channel blockers, alpha-blockers, or vasodilators, all of which open up the blood vessels in various ways and increase circulation.
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