Enhance Detail and increase Resolution in Photoshop Generative ai

Colin Smith

Subscribe on YouTube:

How to get better resolution out of Adobe Photoshop Generative Fill

Generative fill does an amazing job, especially with Version 3 of Firefly. The biggest setback is the lack gf resolution. In this tutorial we will look at what the issues are and 2 ways to fix it. The first way is a new tool Adobe has introduced called Enhance Detail and the 2nd is a fix I came up about a year ago that works great today. These features were previously in beta but now in all versions of Photoshop.

Start with this wide shot.

Wide shot of a mountain biker riding rocky ground below jagged Dolomites peaks under storm clouds

Choose the crop tool and Generative expand from the toolbar.

Drag with the crop tool to outcrop; AKA crop larger than the original size.

Crop tool dragged below the mountain biker photo to make room for Generative Expand

Press Enter to apply and Generate

From a distance, it looks great.

The biker photo extended downward with Generative Expand, looking good from a distance

Zoom in cose and you can see the resolution mismatch. See how the bottom is soft and blurry vs the top part of the image is crisp and sharp.

Zoomed-in view of the expanded rocky ground, soft and blurry compared with the original

Go to the Properties panel

Roll over the variation you are using.

Click the button at the top right to apply Enhance Detail

Properties panel for the Generative Layer with the Enhance Detail button on a variation highlighted

Now when you zoom in, it looks great!

Zoomed-in expanded ground after Enhance Detail, now sharp and detailed

Here is before and after Enhance Detail

Before and after Enhance Detail on the expanded rocky ground, side by side

What Does Enhance Detail do?

Enhance Detail doesn’t download a higher resolution version of the generated variation. What it does, is use Super Resolution.

To demonstrate, let’s go to Adobe Bridge. Right click this low resolution photo and choose Open in Camera Raw.

Adobe Bridge right-click menu with Open in Camera Raw highlighted on a cat photo

Here is our Lowe resolution cat photo.

Right-click.

Low-resolution photo of a happy cat in a yellow bandana open in Camera Raw

Click on Enhance.

Camera Raw right-click menu with Enhance highlighted

Choose Super Resolution and click Enhance.

Camera Raw Enhance dialog with Super Resolution checked and the Enhance button highlighted

Now we get a new image, but this one is 2x as large as before.

New, larger Super Resolution version of the cat photo in the Camera Raw filmstrip

What Super resolution does is make the image physically 4x larger area.

Pixel grid diagram showing how Super Resolution doubles width and height for 4x the area

It upscales and enhances the image, to appear higher resolution than before.

Close view of the upscaled cat photo, sharper and more detailed

By upscaling the image, it makes it look much better and will work for a lot of cases. Bonus, it doesn’t use Generative Credits.

Ok, but what if we have a much larger image? Let’s look at another solution.

Large aerial panorama of a modern city skyline beside a lake, open in Photoshop

Grab the crop tool and choose Generative Expand from the toolbar.

Crop tool Fill option set to Generative Expand in the options bar

Crop larger.

Crop dragged below the 11,000-pixel-wide city panorama

This time, it doesn’t even look good from a distance. This image is 11k wide.

City panorama expanded downward, the new ground looking soft even from a distance

Zoom up close and it’s a mess.

Click Enhance Detail.

Zoomed-in expanded city roads and river, smeared and messy, with Enhance Detail clicked

We just get a sharper version of the mess.

The same messy area after Enhance Detail, just a sharper version of the mess

What’s happening?

Generative Fill only generates and maximum of 1024px x 1024px on the longest edge.

Panorama with a 1024 x 1024 px square marked in the expanded area to show the generation size limit

If the area to fill is larger, it stretches the pixels to fill the area, but it can result in a softer image.

City panorama with the bottom filled by a single stretched, softer generation

Here is the trick to get full resolution in Generative Fill.

I introduced this trick about a year ago, but I’ve updated and made it clearer here.

Grab the Rectangle Marquee tool.

Rectangular Marquee tool highlighted in the toolbar

Change to mode to Fixed size for the top toolbar.

Marquee Style menu with Fixed Size selected

Set it to 1024 x 1024px in the size.

Marquee Width and Height both set to 1024 px

If your image is flattened, click the padlock in the background, in the Layers panel,  to convert to a layer

Grab the Crop tool

Choose Transparent from the options in the top toolbar. (If you don’t see transparent, your background is flattened and isn’t a layer).

Crop tool Fill menu with Transparent (default) chosen instead of Generative Expand

Drag with the crop tool to enlarge your image.

Crop dragged below the city panorama to enlarge the canvas

You should see a transparent background. If you don’t, back up a couple of steps and get it right.

City panorama with an empty transparent area added along the bottom

Now, because we are using a fixed size for the marquee tool, your selection should be 1024 x 1024px which is the maximum for Generative Fill (at the time of this writing).

Make a selection in the bottom left.

1024 px square selection in the bottom left of the transparent area

Click Generative Fill in the taskbar and click generate. Leave the text prompt blank.

Now you will se a block at full resolution.

One block filled at full resolution with trees, shoreline and water

Zoom in and its perfect resolution.

Close-up of the generated block showing crisp trees and shoreline

Make a selection next to it with a small amount of overlap

Generate

Next 1024 px selection overlapping the first generated block

Keep going until you have a perfect extension to your image which is sharp enough to print.

Finished city panorama extended at full resolution with park, roads and lawn below

To make life easier for you, I have created a free action here.  
(If you are on our newsletter, click the link to the vault from the newsletter and it’s included in the actions)

Thanks for checking this out, I hope it was helpful

See you at the CAFE

Colin


Follow along for more tips

Recommended for this tutorial

Complete Guide to ai in Photoshop 2026

Generative Fill, Firefly, Harmonize and every AI tool in Photoshop, step by step.

$79.00 · one-time purchase · instant download

Photoshop Vault: free Layer Blend Modes ebook, actions, brushes, presets and cheat sheets

Free for you

The Photoshop Vault

Get my free Layer Blending Modes ebook along with dozens of exclusive Photoshop goodies: actions, brushes, presets and cheat sheets.

You're on the list, so your free goodies are waiting for you in the Vault.

Get Free Photoshop Goodies Open the Vault

6 comments

  1. stephen hooton

    I found that you need to uncheck the delete pixels box before starting the action otherwise it stalls and gives a message about not being able to complete as the set command can not load

Leave a comment

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Copy link