Why a Photoshop Photo Turns Red in Quick Mask Mode
By ImgHeal · Updated
A red wash over an old portrait can look alarming when you were only refining a selection. In Photoshop, it may be a temporary Quick Mask display. Establish what the overlay represents before adjusting color, flattening the document, or assuming that a restoration has damaged the image.
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Identify a selection display
Check whether Quick Mask mode is active and whether the Channels panel shows a temporary mask channel. The overlay's color is a display aid; it is not automatically red paint added to the photograph. Its default interpretation can also be changed, so do not infer selected versus protected areas from color alone. Return to the ordinary composite view for a moment and compare the appearance. If the wash disappears, investigate the mask rather than attempting a global color correction.
Refine a small recognizable boundary
Use a duplicate working document and choose a simple edge, such as the border of a garment beside a plain background. Inspect which side of that edge is protected before painting. Make one small black or white correction, switch back to the selection view, and check the result. Undo if the behavior is opposite to your intention. A selection outline does not show every partially selected pixel, so softly covered regions can exist beyond the obvious marching-ants boundary.
Return to the photograph before judging color
Leave Quick Mask mode before evaluating the restoration's overall tone or comparing skin colors. Save an important selection deliberately if it must be reused; a temporary overlay is not a reliable record of a finished edit. Export a separate viewing copy and reopen it normally to confirm its appearance. Do not make a screenshot of the overlay your restoration source. Keep any notes about selection work with the editable document, while retaining the original scan without the selection display or subsequent retouching.
Check the working document
- Quick Mask state was identified.
- One test confirmed selected and protected areas.
- Color was judged outside the overlay view.
Sources and further reading
- Adobe: Quick MaskExplains the temporary colored selection overlay and its display options.
Questions about this restoration task
Does changing the overlay color change the photo?
The overlay's display color helps you see the mask. It does not recolor the source pixels or establish whether a selected region is historically accurate.
Continue with a related guide
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