WEBVTT

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OmaRaw
External image masks
Use a greyscale image to restrict supported global adjustments.

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An image mask limits a global adjustment
White selects, black protects and grey gives partial coverage.

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Open the External mask controls
The file must align with the uncropped, unrotated source.

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Choose the adjustment to restrict
This example connects the mask to Exposure.

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Import the aligned greyscale demo mask
A managed copy is stored with the catalog.

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The mask is connected to Exposure
The photo changes only when the connected adjustment has an effect.

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Apply an exposure correction
The mask limits this global tool to the selected area.

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Invert swaps selected and protected areas
This changes the actual mask polarity.

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Restore the original polarity
Review the edge and alignment before exporting.

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Opacity controls the mask contribution
Overlay display settings are a different thing.

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Disconnect returns Exposure to global coverage
It keeps the tool’s numerical adjustment.

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Use mask reconnects the available image
Other supported tools can use the same shared mask.

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Replacing the shared image affects every connection
Review each connected tool after a replacement.

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Back up the catalog’s masks folder
Preset JSON stores a file reference, not the mask pixels.

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Explore the controls in the written tool reference
OmaRaw