RGB CurvesBasic Properties
基本属性
饱和度[-100. . 100% ]
Defines the amount of hue in a given color or in the colors of an image, i.e., how brilliant a color/colors will appear. A Saturation value of 0 will result in an image being reduced to grayscale values.
定义给定颜色或图像颜色中的色调量，即一种颜色/颜色显示的亮度。饱和度值为0将导致图像降低为灰度值。
亮度[-100. . 100% ]
Makes an image evenly brighter or darker.
使图像均匀地变亮或变暗。
对比度[-100. . 100% ]
Higher Contrast values will darken dark regions and brighten bright regions of an image, which will amplify the differences between regions with different brightness values.
较高的对比度会使图像的暗区变暗，亮区变亮，这会放大亮度值不同的区域之间的差异。
Lower Contrast values will lighten dark regions and darken lighter regions of an image, which will result in a optical "flattening" of the image.
较低的对比度值会使图像的暗区变亮，而变暗的亮区则会导致图像的光学“扁平化”。
曝光[-10. . 10]
Exposure is used to adjust the brightness of HDR and also normal images.
曝光用于调整 HDR 的亮度，也可以用于正常图像。
伽马值[0.1. . 10]
The Gamma value defines how the brightness values will be displayed (e.g., a bright pixel can be made much brighter or darkened). Basically the Gamma value is used to adjust brightness values.
伽玛值定义了亮度值将如何显示(例如，一个明亮的像素可以变得更亮或更暗)。基本上伽玛值是用来调整亮度值。
红绿蓝
Use these options to enable or disable each color channel.
使用这些选项可以启用或禁用每个颜色通道。
Inverts the image’s color values. Black regions are made white and vice versa. RGB images are inverted by subtracting the maximum pixel color value (i.e. from 255 for 8-bit color depth) for each channel (red, green, blue).
反转图像的颜色值。黑色区域变成白色，反之亦然。RGB 图像通过减去每个通道(红、绿、蓝)的最大像素颜色值(即从255减去8位颜色深度)来反转。
Black Point[0..100]
White Point[0..100]
黑点[0. . 100]白点[0. . 100]
These values define the darkest and brightest points, respectively. If one of the values is modified the tonal value will be scaled accordingly.
这些值分别定义了最暗点和最亮点。如果其中一个值被修改，音调值将相应调整。
梯度曲线
The gradient curves can be used to brighten, darken
or color specific brightness regions. 渐变曲线可用于点亮、变暗或特定颜色亮度区域
The gradient curves can be used to precisely modify brightness and color regions of original image. For example, only the dark regions of an image can be brightened or brighter regions can be colored.
利用梯度曲线可以精确地修改原始图像的亮度和颜色区域。例如，只有图像的暗区域可以变亮或者亮区域可以着色。
This can also be done for individual color channels using the separate red, green and blue gradient curves.
这也可以做为个人的颜色通道使用单独的红色，绿色和蓝色渐变曲线。
In the Picture Viewer’s filter settings you will find a color correction setting that can be used to affect the image interactively.
在图片查看器的过滤器设置中，你会发现一个色彩校正设置，可以用来交互式地影响图片。
等级强度[0.100% ]
Here you can steplessly define the intensity of the Color Correction effect during rendering. A value of 0% disables the effect; a value of 100% maximizes the effect.
在这里你可以无限制地定义渲染过程中的色彩校正效果的强度。如果值为0% ，则禁用效果; 如果值为100% ，则效果最大化。
Curve Min[-∞..+∞]
Curve Max[-∞..+∞]
曲线 Min [-∞ . . + ∞]曲线 Max [-∞ . . + ∞]
Use these settings to define the brightness region within which the gradient curves should unfold their effect. This is not important for 8-bit or 16-bit images since they have a range of 0 - 255 and 0 - 65535, respectively, and therefore use the default values of 0 and 1.
使用这些设置来定义渐变曲线展开效果的亮度区域。这对于8位或16位图像并不重要，因为它们的范围分别为0-255和0-65535，因此使用默认值0和1。
These settings are, however, relevant for use with HDR images. As you know, HDR images can contain an almost infinite amount of brightness. Using the Min and Max values you can more precisely restrict the brightness range within which the gradient curves should unfold their effect. Brightness values less than Min and larger than Max (values greater than 1000 can be entered) will remain constant (Attention: This means that all brighter regions will be omitted if the default Max value of 1 is used! The Max value must be adjusted manually). The gradient curve will then unfold its effect within this value range.
然而，这些设置与 HDR 图像相关。正如你所知道的，HDR 图像可以包含几乎无限的亮度。使用最小值和最大值，你可以更精确地限制亮度范围内的渐变曲线应展开他们的效果。亮度值小于最小值和大于最大值(可以输入大于1000的值)将保持不变(注意: 这意味着如果使用默认的最大值1，所有亮区将被省略！最大值必须手动调整)。然后，梯度曲线将在此值范围内展开其效果。
曲线
Use this curve (in addition to the RGB curves) to define the overall brightness. How the Curve works is explained below.
使用这条曲线(除了 RGB 曲线)来定义整体亮度。下面将解释曲线的工作原理。
RGB Curves
RGB 曲线
红绿蓝
The gradient curve is applied to the linear
grayscale at the left. The result is shown on the right. 左边的线性灰度图应用了梯度曲线，结果如右图所示
A gradient curve defines where a new brightness value will be assigned along the X axis. This is easy to recognize in the image above. The Curve applies a brightness value of 0 to the first third, i.e., black. The second third has a linear gradient that assigns proportional brightness values to the region. The last third has a maximum value, which means it appears white.
梯度曲线定义了沿 x 轴分配一个新亮度值的位置。这在上面的图片中很容易识别。曲线将亮度值0应用于第一个三分之一，即，黑色。第二个第三有一个线性梯度，分配比例亮度值的区域。最后三分之一有一个最大值，这意味着它显示为白色。
This can also be done separately for each color channel, red, green, and blue. This makes it possible to color dark or bright regions only (the histogram in the Picture Viewer shows where which color dominates in the image):
这也可以分别为每个颜色通道，红色，绿色和蓝色。这使得只对黑色或亮色区域进行着色成为可能(图片查看器中的直方图显示了图像中占主导地位的颜色) :
Dark regions in the center were colored red and
bright regions at the right blue. 中间的黑色区域为红色，右边为明亮的蓝色区域
重置值
Clicking on this button will set all color correction values back to their original states, which has the same effect as not having a post effect at all.
点击这个按钮会将所有的色彩校正设置回原来的状态，这和完全没有后期效果是一样的。