How to Blend Two Images Together: 3 Methods

Here is how to blend two images together: stack them as layers, lower the top layer's opacity or change its blend mode, and use a soft layer mask to decide where each picture shows. To merge the subjects into one new picture instead, an AI image editor can build it from a prompt and both photos.

Created: October 4, 2026. Updated: October 4, 2026.

Before you pick a tool, decide which kind of blend you want. This guide covers how to blend two images together in three ways, and which result each one is good for.

Decide what "blend" means for your project

People use the word for three different results, and each points to a different method.

• Overlap. Two pictures show through each other, as in a double exposure. Opacity and blend modes do this.
• Transition. One picture fades into the other across the frame, like a sky that melts into a street. A layer mask with a gradient does this.
• Merge. One new picture contains the subject of one photo, the setting or style of the other, and looks like a single shot. This is where an AI editor helps most.

How to blend two images together with opacity and blend modes

This works in any editor with layers: Photoshop, GIMP, Photopea, and most design tools. Adobe Photoshop is a product of Adobe; the others are independent.

1. Put the photo you want as the base on the bottom layer.
2. Place the second photo above it and resize it to cover the canvas.
3. Lower the top layer's opacity until both show. Start at 50 percent.
4. Try the blend modes. Multiply darkens the result and keeps shadows. Screen lightens it and keeps highlights. Overlay and Soft Light add contrast, and Soft Light is the gentler of the two.
5. Adjust levels or curves on each layer separately until neither photo drowns the other.

For a classic double exposure, put a high-contrast portrait on the bottom layer, a landscape or texture above it, set the top layer to Screen, and then raise the contrast on the portrait.

How to blend two images together with a layer mask

Opacity mixes the whole frame evenly. A mask lets you choose where each photo appears.

1. Stack the two photos as before.
2. Add a layer mask to the top photo.
3. Use the gradient tool with black to white, and drag across the area where you want the change. The top photo fades out along the line you drew.
4. Paint over trouble spots with a soft black or white brush at low opacity. Black hides the top photo, white reveals it.
5. Put an adjustment layer over the top photo and match its colour temperature and brightness to the one underneath.

Matching brightness and colour is what hides the join. A close match under a gradient mask reads as one photograph. A mismatch reads as two photos with a blur between them.

How to blend two images together with AI

A merge is harder by hand, because the subject from one photo has to fit the light, angle, and scale of the other. An AI editor redraws the whole frame from your references, so it handles that fit for you. The trade-off is that the picture is redrawn rather than composited. Fine details can shift, so check faces, text, and patterns at full size.

On GPT-IMG, the AI image combiner takes up to five photos per generation. The steps:

1. Upload the photos in the order you want to refer to them.
2. Give each photo a job in the prompt: "image 1 is the person, image 2 is the room". There is no role selector, so the prompt is the only place roles live.
3. Add the rule that matters most. For a person, that is "keep the face exactly as in image 1".
4. Generate, compare, and run it again with one change at a time.

A reference run costs 25 credits at 1K Standard on GPT Image 2.5, and 15 credits on FLUX 2 Pro. The exact cost shows on the button before you submit, and failed jobs are refunded. The full table is on the pricing page.

Three prompts to adapt

These are starting points, not guaranteed results. Swap in your own subjects.

Use image 1 as the person, keeping the face and
pose exactly. Place them in the room from image 2,
lit by the same window light. Keep the framing
of image 1.

Image 1 is a product photo. Image 2 is a mood
photo. Show the product from image 1 in the
setting of image 2, with the colour palette
of image 2. Keep the product's shape, label,
and proportions unchanged.

Blend image 1 and image 2 into a double
exposure: the silhouette of the person in
image 1, filled with the forest scene from
image 2. Dark background, high contrast.

Prepare the images first

A clean blend starts before you open the editor. Match the aspect ratio of both photos, or crop one to fit the other. Work from the largest originals you have, because enlarging a layer softens it and the blend will make that softness obvious. Check that the two photos have a similar tone: a bright, high-key photo over a dark, moody one will swallow detail whichever method you pick. Keep each photo on its own layer and save the layered file, so you can change the mix later without starting over.

When a blend goes wrong

Problem	Likely cause	Fix
Muddy, low-contrast result	Both layers at 50 percent	Raise contrast on one layer, or use Screen or Multiply instead
A halo around a cut-out	Edge not refined	Refine the edge and soften the mask by a pixel or two
The join is obvious	Colour or brightness mismatch	Add an adjustment layer to the top photo and match it
Perspectives clash	Different camera angles	Choose photos taken from a similar height
AI ignores one photo	That photo has no job in the prompt	Name its role: subject, setting, or style
AI result looks like neither photo	The references conflict	Pick one photo to set the light and say so

Which method to pick

Pick opacity and blend modes if you want an artistic overlap and you already own an editor. Pick a layer mask if the two photos should flow into each other and you need control over where the change happens. Pick AI if the goal is a believable merged scene and you would rather describe it than build it.

You can also combine them: merge with AI, then finish the colour in a layered editor.

FAQ

How do I blend two images together in Photoshop?

Place both images as layers, lower the top layer's opacity or change its blend mode, then add a layer mask and use a black-to-white gradient to control where each image shows. Match colour and brightness with an adjustment layer, and keep the layers separate until you are happy with the mix.

Can AI blend two photos into one?

Yes. Upload both photos, say which one supplies the subject and which supplies the setting or style, and generate. The result is a redrawn picture rather than a composite, so compare faces, text, and patterns with your originals at full size before you use it anywhere that matters.

How do I blend two pictures without losing quality?

Work from the largest originals, keep each photo on its own layer, and avoid resizing a layer up, since enlarging softens detail. Export a lossless PNG or TIFF for the master file, then make smaller JPEG copies for sharing so you never re-save the same JPEG twice.

What is the easiest way to blend two images together?

For an overlap, lowering the opacity of the top layer is the quickest route and needs no skill. For a merged scene, describing it to an AI editor with both photos uploaded takes less work than building the fit by hand, though you will need to check the result carefully.

Next step

Now you know how to blend two images together three ways. Open the AI image combiner, upload two photos, and start from the first prompt above. To change only the setting behind a subject, use the AI background changer. For more on assigning roles to reference photos, read the reference image guide.