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subtract-masking

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Subtract masking

A masking technique in adobe-lightroom used to exclude specific areas from an existing mask, enabling highly targeted Local adjustments.

Core Functionality

  • Used to refine selections by removing unwanted pixels from a previously defined mask.
  • Works as part of a suite of masking-tools (including add-masking and intersect-masking) to achieve precision.
  • Often used in conjunction with intersect-masking (introduced late 2023) to isolate specific overlapping regions for complex edits.

References

Source Notes

  • 2026-04-21: [[concepts/lightroom|Lightroom Intersect Masking for Precise Local Adjustments]]

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