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The Tune Image filter provides control over the color and tonality of your photo, with the ability to automatically correct for issues found in your photo, adjust the entire image to create a specific look, and to provide selective adjustments. Using the Tune Image filter can help you quickly and easily fix potential issues or to stylize your photo in an easy and straight-forward way.
The first preset, Automatic, analyzes your photo and creates a customized effect based on the needs of your photo. The remaining presets contain pre-determined slider values to create a specific look in your photo.
Clicking and dragging the slider to the right brightens your photo, while dragging to the left darkens it.
Clicking and dragging the slider to the right increases the contrast, while dragging to the left reduces the contrast.
Clicking and dragging the slider to the right increases the saturation, or vibrancy, of the colors. Dragging to the left decreases saturation. Dragging completely to the left will result in a photo completely without color.
The Shadows control lets you adjust the brightness of only the dark tones of your photo. Dragging the slider to the right will start brightening only the dark areas throughout your photo, without affecting the bright areas.
The Ambiance control is a special type of contrast that controls the balance of light in a photo. It can be used to balance backlit photos or to accentuate contrasts throughout your photo. Click and drag to the right for photos where the subject is darker than the background. Draggin to the left to increases the contrast of dark objects and creates a slight glow around darker objects. This is especially helpful in photos that are slightly flat, or lacking in contrast.
Use the Warmth control to adjust the color balance of your photo. Dragging the slider to the left will cool the image, making it bluer and less orange. Dragging the slider to the right will make your photo warmer, with more orange and less blue.
In addition to the Global Adjust sliders, the Tune Image filter includes the ability to selectively adjust your image using Control Points. The Control Points utilize Nik Software’s award-winning, patented U Point technology to make it possible to simply point and selectively enhance objects.
To use a Control Point:
- Click on the Add Control Point button
- Click on the area of your photo that you want to enhance selectively. A Control Point will be placed where you click. Move the Control Point at any time by clicking and dragging on the Control Point.
- To increase the area affected, make sure that the Control Point is selected and active by clicking once on the Control Point and then click and drag on the Size button located immediately to the right of the Control Point. Clicking and dragging the Size button to the right will increase the reach, causing the Control Point to look for objects similar to the object that the Control Point was placed upon, farther and farther away from where the Control Point was placed. While adjusting the reach, a circle is shown describing the range of the Control Point and the area that will be affected by the Control Point is inked with a red overlay. To reduce the reach of the Control Point, click and drag on the Size button to the left.
- Clicking and dragging on the B (brightness), C (contrast), or S (saturation) buttons will either increase or decrease the selected areas’ brightness, contrast, or saturation.
Add additional Control Points until you have created the desired enhancement.
Control Points can also be deleted, duplicated, and reset. Right-click (or control-click) on a Control Point to access the Control Point contextual menu with options to delete, duplicate, and reset the Control Point.
To hide any Control Points currently on your image, make sure to first deselect any selected Control Points by clicking on an area of your image without a Control Point and then move your mouse cursor off of the image.
Crop & Straighten
The Crop & Straighten filter makes it possible to re-compose an image, to straighten photos with an uneven horizon, and to rotate photos 90° left or right.
Drag any edge or corner to change the crop rectangle.
Click on the Preview button to preview your image with the crop applied.
Select from one of the available crop aspect ratios
- Original—the aspect ratio will be based on the original image
- Free—the aspect ratio can be set freely, without constraint
- 16:9—creates images with the aspect ratio of most HDTVs
- 5:4—creates images with the aspect ratio of many typical US large photo sizes (8×10, 16×20, etc.)
- 4:3—sets the aspect ratio to what is typically found on normal point and shot cameras, as well as standard definition TVs
- 3:2—creates images with the aspect ratio commonly found on D-SLRs. Additionally, this aspect ratio is used for 4×6” images
- 1:1—use this aspect ratio to create a square image
- DIN—sets the aspect ratio according to European page aspect ratios (such as A4, A3, A2, etc.).
- Flip Aspect Ratio—click on this button to rotate the crop rectangle 90°
Click on this button and then click and drag on the image to define an area that should be straight. Snapseed will automatically adjust the Angle slider to make the line that you drew either a horizontal or vertical line. Use this tool to trace the horizon, building, or other object that should be straight.
Drag this slider to rotate your photo by 45° in either direction.
- Rotate Left
Clicking on this button will rotate your photo 90° counter-clockwise.
- Rotate Right
Clicking on this button will rotate your photo 90° clockwise.
The Details filter enables you to enhance the details and improve the sharpness of your photo.
Each of the six presets apply pre-defined slider settings to stylize your photo.
Drag this slider to the right to increase the amount of sharpness in your photo.
Drag this slider to the right to increase the amount of details in your photo. Structure uses a unique algorithm to bring out the texture of objects throughout the photo, without affecting the edges of objects.