Chromatic aberration effect on an image
Simulate the optical defect of chromatic aberration by slightly shifting the red and blue channels of a photo, while keeping the green channel fixed. Choose a classic horizontal shift or a radial shift that is more pronounced on the edges.
How it works
On a real lens, light wavelengths do not all converge at the same point, creating slight colored fringes. This tool visually reproduces that defect by reading the red channel slightly shifted to one side and the blue channel to the other, while the green channel remains unchanged, creating the characteristic red/cyan fringes.
What is the difference between horizontal mode and radial mode?
Horizontal mode applies a uniform shift across the entire image, like a simple lens defect. Radial mode increases the shift as you move away from the center of the image, mimicking lateral chromatic aberration more faithfully — the kind especially visible at the edges of photos taken with real wide-angle lenses.
On what type of image is the effect most visible?
High-contrast areas, such as white text on a dark background or the sharp outlines of objects, reveal colored fringes best. On a blurry or very uniform photo, the effect remains subtle even at high intensity.
100% local processing: channel shifting is calculated pixel by pixel in your browser — your image is never transmitted to a server.