This kind of banding is usually caused by flickering LED light combined with an electronic rolling shutter. The light output varies over time, and the sensor reads the frame line by line, turning that flicker into horizontal brightness bands.

There isn’t a simple one-click fix, and complete removal may not be possible. The best results usually come from local tonal correction:

• Use dodge/burn or a masked levels/curves adjustment to brighten darker bands and reduce brighter ones.
• Blur the mask slightly so the corrections blend naturally.
• For a more advanced approach, frequency/wavelet decomposition can isolate the broad banding pattern on lower-frequency layers; you can then blur or smooth only those affected layers in the problem area.
• Another advanced method is to extract the banding pattern and apply it as a corrective layer (for example, using divide-style correction), but this takes careful retouching.

If the bands have uneven falloff, cleanup gets much harder.

For future shots, avoid silent shutter under flickering LEDs when possible, or use mechanical shutter / anti-flicker settings if available.