使用 Color Slice 工具Using the Color Slice Tool

10 steps

简介Overview

最后要介绍的工具是 Color Slice（色彩切片），它是 Color页面较新的功能之一。可以把画面中所有颜色想象成一个 3D 立体，并按色相切成多段；Color Slice 允许你单独控制每一段，调整对应颜色的 hue（色相）、saturation（饱和度）和 density（密度）。它还带有 skin-tone（肤色）控制，在很多情况下无需先限定肤色区域就能直接调整。The final tool we will look at is one of the newest additions to the color page, and that is the Color Slice. Imagine the range of colors you work with in an image as a 3D shape sliced into segments for each hue. The Color Slice allows you to control each of the slices, giving you the ability to adjust the hue, saturation, and density of the color involved. It also has a helpful skin-tone control, so in some cases you don’t have to even qualify a skin tone to make an adjustment.

  1. 在时间线上选中第 21 个片段。Select clip 21 in the timeline.
  2. 在中间窗口中选择 Color Slice 工具。Select the Color Slice tool in the middle window.

可以看到这个工具被划分为色轮上的六个颜色区域，并附加了一个肤色控制。当前画面中肤色显得有些平淡发灰，我们来增强一下肤色。As you can see, the tool is split into the six color areas you find in a color wheel and also the skin control. In this shot, the skin tone looks a little flat and gray, so we will enhance the skin tone.

  1. 点击并向上拖动肤色控制上的 Saturation滑块到约 1.50，为人物面部增加饱和度。Click and drag the Saturation slider on the skin tone up to around 1.50 to add more saturation to our subject’s face.

饱和度 / 密度（Saturation / Density）Saturation Density

  1. 将 Density滑块向下拖到约 -0.50，提亮肤色区域。Drag the Density slider down to around -0.50 to lift the skin tone area.
NOTE · 注意NOTE：Color Slice 工具的工作方式与其他调色工具有所不同。它采用减色（subtractive）方式工作，也…

NOTE：Color Slice 工具的工作方式与其他调色工具有所不同。它采用减色（subtractive）方式工作，也就是说调整饱和度时不会让颜色变得不自然地鲜亮，因此无需额外的亮度调整。如果需要微调亮度，可以使用 Density 控制来调整高饱和度颜色的亮度，这正是减色过程的模拟方式。The Color Slice tool works in a slightly different way than the other color tools. It works in a subtractive way, meaning that when adjusting the saturation of colors, it does not make the colors unnaturally bright. Therefore, they do not need luminance adjustments. If luminance needs to be tweaked, the Density control can be used to adjust the luminance of more saturated colors, which emulates the subtractive process.

肤色看起来 OK 了，但画面中似乎还有蓝色噪点。这可能是因为肤色调整区域没有覆盖到面部的所有色相。The skin tone looks OK. However, there appears to be blue noise in the image. This could be because the area that the skin tone is adjusting does not cover all the hues of the face.

  1. 点击并按住肤色控制左上角的 Highlight按钮，查看当前影响范围。Click and hold the Highlight button at the top left corner of the skin tone control to see the area you are affecting.
  2. 对红色控制重复上述操作，按住 Highlight按钮观察——可以看到部分面部颜色溢出到了红色通道中。Repeat the process using the Highlight button over the red control. As you can see, some of the face spills into the red channel.
  3. 将红色 saturation 向上拖到约 1.50，density 向下拖到约 -0.60，让肤色看起来更加平滑。Drag the red saturation up to around 1.50 and the density down to around -0.60 to make the skin color look a little smoother.
  4. 在节点编辑器（Node Editor）中选中 node 01，右键点击，选择 Add Node > Add Serial，或按 Option-S（macOS）/ Alt-S（Windows）。With node 01 selected in the Node Editor, right-click it and choose Add Node > Add Serial or press Option-S (macOS) or Alt-S (Windows).
  5. 使用黄色控制点调整饱和度和密度，直到树木呈现合适的绿色。Using the yellow control, adjust the saturation and density until the trees look suitably green.
  6. 再添加一个节点，调整蓝色和青色的饱和度，使天空看起来更加均匀的蓝色。Add another node and adjust the blue and cyan saturation until the sky looks a more even blue.

原始画面与完成调色后的对比。Original shot and completed grade.

NOTE · 注意NOTE：使用 Highlight 按钮时，你会注意到选区看起来比较粗糙、有明显像素感，不像之前用的选区那么精细。这是因…

NOTE：使用 Highlight按钮时，你会注意到选区看起来比较粗糙、有明显像素感，不像之前用的选区那么精细。这是因为这段素材是以 H.264 格式拍摄的，压缩率很高。ProRes 这类格式保留了更多信息，更适合做二级调色（secondary color correction）。录制格式越好，选区就越干净。Blackmagic RAW 之类的格式理想之选——它们拥有更大的色域（color gamut），色域越大，单独隔离某种颜色就越容易。When using the Highlight button, you will notice that the selections look quite pixelated and not as refined a selection as you have been using. This is due to the fact that the clip has been shot in an H.264 format, which in this case is heavily compressed. Formats such as ProRes store much more information and therefore are much better to work with when doing secondary color correction. The better the recording format, the cleaner your selections can be. Formats such as Blackmagic RAW are ideal for this since they use a large color gamut, and the larger the gamut, the easier it is to isolate individual colors.

正如你所见，调色既可以作用于整个画面，也可以用多种方式隔离特定颜色区域，从而实现理想的画面效果。As you have seen, not only can you work with color in the whole image, but you can isolate areas of color in several different ways to get the ideal look you want.

本卡术语Terms in this card

时间线Timeline H.264H.264 ProResProRes 覆盖Overwrite 调色页Color page Lift（暗部）Lift 饱和度Saturation 色彩切片Color Slice 窗口Power Window 二级调色Secondary Correction 调色Grade 节点Node

相关知识卡Related Cards

时间线Timeline 二级调色Secondary Color Correction 肤色调整Skin Tone Adjustment 节点编辑器Node Editor