Adding chromatic aberration to an image can be a creative way to simulate realistic lens imperfections or to achieve a distinct stylistic look. Chromatic aberration is an optical distortion where different colors of light are refracted at slightly different angles, causing them to focus at different points. This results in colored fringes, typically purple, green, red, or blue, around objects, especially near the edges of the image.
Software like Adobe Photoshop provides tools to both correct and introduce chromatic aberration.
Based on information provided in a video titled "How to add CHROMATIC ABERRATION in Photoshop", one specific method using the Lens Correction filter is described:
Adding Chromatic Aberration Using Lens Correction
This technique leverages the controls available within the Lens Correction filter to intentionally introduce color fringing.
Here are the steps as outlined in the reference:
- Access the Lens Correction filter. In Photoshop, this is usually found under the
Filtermenu. - Navigate to the tab used for custom adjustments. This is typically labeled "Custom".
- Find the settings related to image distortion.
- In the input field for the distortion amount, type the value minus 1 (-1).
- Locate the options for selecting or adjusting color channels within the filter.
- Select the blue Channel.
- The reference then instructs to "do the same again." In the context of creating chromatic aberration, this often implies repeating a similar adjustment (like typing -1 in distortion or applying an adjustment to another channel, such as red) to enhance the separation of color channels, which is the core of the chromatic aberration effect.
Following these steps, as described in the reference, within the Lens Correction filter's custom settings can help you apply a chromatic aberration effect by manipulating distortion and channel separation.
