How to Use Cloud Processing with Select Subject in Photoshop

How to Use Cloud Processing with Select Subject in Photoshop

Select Subject has been in Photoshop for years, and it has always struggled with the same things: fine hair, low contrast between subject and background, and complex shapes like foliage or branches.

Photoshop 2025 adds a second option. Selections can be processed on your device as before, or in the cloud — sent to Adobe’s servers for far heavier analysis and returned. It takes a few seconds longer and needs an internet connection, and on difficult images the difference is not subtle.

This is not a generative feature. Nothing is invented; it is a better analysis of the pixels you already have.

Turn Cloud Processing On

Set it as the default under Photoshop ? Settings ? Image Processing, where Select Subject and Remove Background can each be set to Device or Cloud. Choose Cloud and every selection from then on uses it.

Or Choose Per Image

The Object Selection Tool is the better route. Its options bar has Select Subject with a dropdown for Device or Cloud, so you can decide per image.

Select Subject in the Contextual Task Bar does not offer that choice — it uses whatever your preferences specify. If you want to pick per image, use the Object Selection Tool.

Where It Makes the Biggest Difference

Four hard cases, and how the two compare.

Detailed Background Behind the Subject

A subject in front of fan blades or similar structure. Device processing includes chunks of background that clearly are not the subject. Cloud processing separates them cleanly, including between the blades — close to flawless.

Curly Hair on a Dark Background

Device processing grabs foliage behind the subject and leaves a visible border. Cloud is substantially better, though not perfect — expect to refine the edge.

Light Hair on a Light Background

The case where contrast barely exists. Device processing includes large areas of background. Cloud handles it far better. Adding a solid color fill layer behind the cut-out is a quick way to see exactly what the mask caught.

Complex Objects Like Branches

The most dramatic case. A subject holding a branch with flowers: device processing misses the hair, leaves rough edges, and does not even include the arm. Cloud processing picks out the individual branches — a selection that would take a long time by hand.

Refine the Edge Afterwards

Cloud processing is better, not perfect. On hair, plan to clean up.

1. Double-click the layer mask

   Photoshop asks whether you want mask properties or Select and Mask — choose Select and Mask.

2. Take the Refine Edge Brush Tool

   In the left-hand toolbar of the workspace.

3. Paint along the edge of the hair

   Photoshop recalculates that region for fine detail when you release. Do not try to be precise — paint over the messy boundary and let it work.

This is the right tool for wispy edges, and it is worth reaching for on any hair selection regardless of which processing produced it.

Removing a Background Color Fringe

Cutting out against a strong background color usually leaves a rim of it in the hair — green fringing from foliage, for instance.

1. Add a new layer and clip it to the subject

   Hold Alt or Option and click between the two layers so the new one only affects the subject.

2. Set its blend mode to Hue

   At the bottom of the blend mode list.

3. Sample the correct hair color and paint over the fringe

   Press B, hold Alt or Option to sample the real hair color, then paint the affected edge.

Because the layer is in Hue mode, only the color changes — every strand of detail and every variation in brightness is preserved. The fringe becomes hair-colored rather than being erased.

When the Selection Still Will Not Work

Sometimes an area of hair is beyond any selection tool — too low in contrast, too tangled with the background. There is a practical workaround: build the hair from other hair.

Merge your masked layers into a single copy, then use the Selection Brush Tool to select a section of hair that did cut out cleanly. Press Ctrl/Cmd+J to copy it to its own layer.

Press Ctrl/Cmd+T, flip it horizontally, and position it over the problem area. Then right-click and choose Warp to reshape it so it does not read as a mirrored duplicate. Mask the original beneath it.

Repeating this two or three times with different sections, and setting the blend mode to Darken where it helps, builds a convincing hairline.

It is not the original hair, but it is the subject’s own hair, reused — which is a very different thing from generating new hair with AI, and it looks right because it came from the same photograph under the same light.

Worth Knowing

Set Cloud as your default in Image Processing preferences unless you often work offline. Use the Object Selection Tool when you want to choose per image. Expect to refine hair edges with the Refine Edge Brush in Select and Mask. Fix color fringing with a clipped Hue layer rather than erasing it.

The wider point: this is the useful kind of AI in Photoshop. It is not generating content or making creative decisions — it is doing the tedious analytical work of separating a subject from its background, which is exactly the sort of job worth handing over.

Quick Reference: Keys, Menus and Settings

• Turn it on for goodSettings > Image Processing > Select Subject and Remove Background: Cloud
• Choose per imageObject Selection tool > Select Subject dropdown > Device or Cloud
• Cut it outSelect Subject, then Add Layer Mask
• Clean the edgeDouble-click the mask > Select and Mask > Refine Edge Brush over the hair > OK
• Kill a color fringeNew layer clipped to the subject (Alt/Option-click between), blend mode Hue, B, Alt/Option-click the hair color, paint the edge
• Brighten the hair edgeLevels adjustment layer clipped to the subject, Cmd/Ctrl + I on its mask, paint white on the edge
• Hair that still failsSelection Brush around good hair, Cmd/Ctrl + J, Cmd/Ctrl + T > Flip Horizontal, Warp, mask; blend mode Darken helps

Cloud needs an internet connection; no generative credits.