This effect is called moiré. It happens when fine repeating detail in the subject interacts with the camera sensor’s pixel grid, often changing with small shifts in angle or distance.

It can be reduced in software, but it is often not easy to remove perfectly. Common approaches mentioned by the community include:

• reducing color/saturation locally if the problem is mostly false color
• using RAW processing/demosaicing tools, since different demosaicing methods can lessen moiré
• applying blur/noise-reduction style corrections selectively, then restoring some sharpness

More broadly, some cameras use an optical low-pass filter to reduce moiré at capture, though that can slightly soften detail.

In Photoshop, manual correction is possible with selective smoothing or blur and then sharpening afterward. In Lightroom/RAW software, moiré reduction tools may help, especially if you have the RAW file.

Best fix: prevent it when shooting if possible by slightly changing distance, angle, focal length, or aperture so the repeating pattern no longer conflicts with the sensor.