How to Cut Out Your Subject in Photoshop

How to Cut Out Your Subject in Photoshop

Compositing a subject onto a new background starts with a clean cutout, and the Magic Wand tool’s Contiguous option turns out to be one of the most useful settings for getting there quickly. This tutorial cuts a subject out of a plain studio backdrop using the Magic Wand, refines the mask with the Lasso tool, then matches the subject’s color and light to a new background with clipped Curves, Hue/Saturation, and Blend If.

Selecting the Backdrop Instead of the Subject

On a plain studio backdrop, selecting the background itself gives a cleaner starting selection than trying to select the subject directly.

1. Bring the Subject Into the Background Document

   Hold Shift and drag the subject image into the same document as the new background, then press F to full screen the view.

2. Select the Backdrop With the Magic Wand Tool

   Click the plain backdrop with the Magic Wand tool rather than trying to select the subject directly.

Adjusting Tolerance and the Contiguous Option

Two Magic Wand settings, tolerance and the Contiguous checkbox, control exactly how much of the backdrop gets picked up with each click.

3. Lower the Tolerance for a Tighter Selection

   Reduce the tolerance value in the options bar so each click selects a narrower range of similar colors.

4. Turn Off Contiguous to Select Similar Colors Everywhere

   Uncheck the Contiguous option so the Magic Wand selects every area of a similar color across the whole image, not just the connected area directly under the cursor.

5. Shift-Click to Add Additional Areas

   Hold Shift and continue clicking any remaining unselected patches of backdrop, including small gaps inside the subject.

Why Selecting the Background Beats Selecting the Subject Directly

A plain, evenly lit backdrop is far more consistent in color than a subject’s clothing, skin, and hair combined, which makes it a much more reliable target for a color-based tool like the Magic Wand. Selecting the clean backdrop and then inverting the selection produces a more accurate cutout than attempting to select the more visually complex subject directly.

Inverting the Selection Into a Layer Mask

Once the backdrop is selected, inverting it and loading it as a mask isolates the subject on the layer.

6. Add a Layer Mask From the Selection

   Click the Add Layer Mask button to load the current selection directly as a mask.

7. Invert the Mask

   Press Cmd/Ctrl+I to invert the mask so the subject becomes visible and the backdrop is hidden.

Cleaning Up Remaining Background With the Lasso Tool

Whatever the Magic Wand couldn’t cleanly separate gets handled by hand with the Lasso tool directly on the mask.

8. Select Remaining Background Areas

   Use the regular Lasso tool to select any leftover background areas around the subject’s edges.

9. Fill With Black to Hide Them

   Press Shift+Delete and fill the selection with black to hide those remaining background areas on the mask.

10. Check the Mask in Black and White

    Hold Alt/Option and click the layer mask thumbnail to view it directly in black and white, making it easier to spot problem areas.

11. Fill Small Interior Gaps With White

    Use the Lasso tool to select any small gaps inside the subject that shouldn’t be see-through, then press Cmd/Ctrl+Delete to fill them with white using the background color.

Why a Layer Mask Makes an Imperfect First Selection Fine

Because a layer mask can be repainted and refined indefinitely, there’s no pressure to get a perfect selection on the very first attempt with the Magic Wand. Treating the mask as an ongoing, editable starting point rather than a one-shot final result takes a lot of the pressure off getting every detail right immediately.

Scaling and Positioning the Cutout Subject

With the subject cleanly isolated, resizing and placing it into the new scene comes next.

12. Scale From the Midpoint

    Press Cmd/Ctrl+T, then hold Shift+Option/Alt while dragging a corner handle to scale the subject proportionally from its center.

13. Position the Subject Within the Scene

    Move the subject to a spot in the background that makes sense compositionally, such as aligning it with an existing visual element.

Matching Color With Clipped Curves and Hue/Saturation

Small clipped color adjustments bring the subject’s tone in line with the background it’s being placed into.

14. Add a Clipped Curves Layer

    Add a Curves adjustment layer and press Option/Alt+Cmd/Ctrl+G to clip it to the subject layer only.

15. Push the Red Channel to Match the Background

    Switch to the Red channel, click the middle of the curve, and nudge it upward to add warmth if the background leans redder than the subject.

16. Add a Clipped Hue/Saturation Layer

    Add a Hue/Saturation adjustment layer, clip it the same way, and lower the saturation if the subject looks more saturated than the background.

17. Fine-Tune the Blue Channel for Warmth

    Go back to the clipped Curves layer’s Blue channel and lower it slightly for an overall warmer, orange-toned look that matches the scene.

Why Clipping Color Adjustments to the Subject Matters

An unclipped adjustment layer would change the color of the entire composite, including the background that’s supposed to stay untouched. Clipping each Curves and Hue/Saturation layer specifically to the subject keeps every color correction isolated to exactly the piece that needs to match its new surroundings.

Blending Background Light Onto the Subject With Blend If

Sampling color directly from the background’s own light source and restricting it with Blend If helps the subject visually connect with the light already present in the scene.

18. Create a New Clipped Layer

    Add a new layer and clip it to the subject.

19. Sample a Light Color From the Background

    Sample a color directly from a light source in the background, such as the sun or another bright area.

20. Paint the Sampled Color Over the Subject

    Paint the sampled color loosely over parts of the subject facing that light source.

21. Restrict It to Highlights With Blend If

    Double-click the layer, hold Alt/Option, and drag the underlying layer slider from left to right so the painted color only shows up where the subject is already lighter.

22. Lower Opacity to Taste

    Reduce the layer’s opacity if the effect looks too strong once restricted to the highlights.

Why This Approach Works

Selecting the plain backdrop instead of the subject, then inverting that selection, takes advantage of how much more consistent a studio background is compared to a person’s clothing, skin, and hair. Turning off Contiguous on the Magic Wand and lowering tolerance is what makes it possible to grab similar-colored background pixels hiding inside fine details like fabric or hair. Clipping every color adjustment specifically to the subject, and sampling light directly from the new background, is what turns a technically correct cutout into something that actually looks like it belongs in the scene.

Final Thoughts

Cutting a subject out cleanly and blending it convincingly into a new background comes down to a handful of repeatable habits: select the simpler background rather than the complex subject, treat the resulting mask as editable rather than final, and finish with clipped color adjustments and a touch of borrowed light. None of these individual steps are complicated, but together they’re what separates an obviously pasted-in subject from one that looks like it was actually photographed in the scene.

Quick Reference: Keys, Menus and Settings

• Bring in the subjectMove tool, Shift-drag into the background document; F for full screen
• Magic WandTolerance 9 down to 3, Contiguous off, Shift-click to add
• Mask and invertLayer mask button, then Cmd/Ctrl + I
• Clean the maskLasso, Shift + Delete to fill black, Cmd/Ctrl + Delete to fill white; Alt/Option-click the mask to view it
• Scale from centerCmd/Ctrl + T, Shift + Alt/Option-drag a corner
• Clip and matchOption/Alt + Cmd/Ctrl + G; Curves Red up, Blue down; Hue/Saturation lower Saturation
• Borrow the lightDouble-click the layer, Alt/Option-drag the Underlying Layer slider, lower Opacity