Tabs - Light / Color
Operations on this tab allow you to adjust the exposure, fill light, color balance, HSL, brightness, contrast and saturation of the image. The settings of the operations are located on the panels:
- Exposure / Fill Light - adjusting the image exposure, removing too deep shadows;
- Color Temperature - fixing an error in determining the color temperature ("white balance");
- Color Balance - fixing the image color in case of incorrect color reproduction;
- Brightness / Contrast - enhancing faded images;
- Saturation - adjusting the color brightness, getting a black-and-white image and the sepia effect;
- HSL - adjusting hue, saturation and luminance for separate color ranges.
Exposure / Fill Light
Allows you to fix an underexposed (too dark) image, increase the brightness of details in deep shadows.
Two sliders are used to adjust the values:
- Exposure - exposure compensation. EV (Exposure Value) is used as a unit of measurement;
- Fill Light - restores details in the dark areas of the image without affecting light areas.
Example:
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Source image
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Increased exposure (highlights are lost: the sky has lost its natural color)
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Increased Fill Light (the sky has kept its natural color)
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Color Temperature
Allows you to simulate a change in the color temperature of the light source. The adjustment is performed:
- Semiautomatically by specifying the area on the image that actually has a neutral color (white / gray) - the "Neutral Color Picker" button (
 );
- Manually - using the Temperature and Tint sliders.
Color Balance
Allows you to adjust the color balance of the image. The balance is adjusted:
- Automatically - the
 button;
- Semiautomatically by specifying the area on the image that actually has a neutral color (white / gray / black) - the "Set White Point" button ( ) (in highlights) or the "Set Black Point" button (
 ) (in shadows);
- Manually - using three sliders: "cyan / red", "magenta / green" and "yellow / blue" responsible for increasing the corresponding colors.
The semiautomatic and manual modes allow you to adjust the color balance separately in highlights (the Highlights tab) and in shadows (the Shadows tab).
Note 1: You can additionally adjust the result of the automatic and semiautomatic color adjustment manually.
Note 2: Using automatic adjustment first can make the process of manual adjustment considerably easier.
Sample color adjustment:
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Source image
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Automatic adjustment
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Automatic adjustment + manually increased blue color in shadows (in order to adjust the water color)
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An example of using the semiautomatic mode - "Set White Point" ( ):
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Source image
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Setting the "White Point" (the red rectangle)
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Adjustment result
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Brightness / Contrast
Allows you to adjust the brightness and contrast of images. The adjustment is performed:
- Automatically - the button;
- Manually - using the Brightness and Contrast sliders.
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Source image
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Image with adjusted brightness and contrast
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Saturation
Adjusts the color saturation. You can also use this tool to get a black-and-white image by moving the slider completely to the left (the value is -100) and the old photo effect by enabling the Sepia option (  ).
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Source image
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Black-and-white image
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Sepia effect
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HSL
Allows you to change the Hue, Saturation, Luminance parameters of separate colors in the image.
The entire color scale is divided into 8 ranges: Red / Orange / Yellow / Green / Aqua / Blue / Purple / Magenta. Depending on the selected Hue / Saturation / Luminance tab, each slider changes the corresponding parameter of its color range.
The Pick up the color and adjust Hue / Saturation / Luminance tool (  ) allows you to pick up the color and adjust its parameters right in the image.
To do it:
1) enable the tool - click it;
2) move the mouse pointer (displayed as a dropper) over the area in the image that has the color whose parameter you would like to adjust or change and select this color - click and hold down the left mouse button;
3) change the value of the color parameters - hold down the left mouse button and move the mouse to the left (to reduce the values) or to the right (to increase the values); you will see the sliders of the corresponding color ranges move while you are doing this.
Example:
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Source image
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Move the mouse pointer over the area in the image that has the color whose parameters you would like to change.
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Hold down the left mouse button and move the mouse to the right/left in order to change the color parameters (for example, Hue).
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