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Replace and modify an image

With Seelab, you can easily modify images using advanced inpaiting functions, allowing you to add or modify elements while maintaining the original style of the visual.

Select your image

There are two ways to select an image for editing:

from the creation flow : hover over an image and click on the “edit” button
from the “editor” tab : you can then upload an image from your computer for editing.

Then make sure you've selected the “replace” tab in the toolbar to the left of the editor.

You can select the replace tool directly by using the shortcut (i key).

Select the area of the image to be modified

When you arrive at the “replace” tab, the “brush” tool is directly selected.

Hold down the mouse button and draw the area you wish to modify.

Select area to modify

In the right-hand column you'll find a number of tools to help you correctly select the area of the image you wish to modify.

Image layout parameters

Image zoom: you can either use your mouse, or use the + or - buttons on the interface.
Image position: you can “center” the image, or choose to “adjust” it (to fit the height), or “fill” the frame (to fit the width).
History: when editing the image, you can navigate through your different iterations using the arrows or shortcuts (ctrl + Z or ctrl +Y).

Brush tool parameters

Brush tool

In the right-hand column you can:

modify the size of your brush, for greater precision or, on the contrary, select a larger area
delete the selected area, if you wish to start again from scratch.

Mask inversion

Mask Inversion

Use this switch if you wish to select the opposite area to what you have drawn. This can be very useful if you want to keep only a small part of the original image.

Write your prompt to modify the selected zone

Prompt to be applied to the zone to be modified

Then describe what you want to change on the selected area using the prompt window at the bottom of the application and click on the “generate” button. Here we'll add a hat to the magnificent Labrador retriever created earlier.

A few tips on prompting

keep your prompt short and concise
It is not necessary to add injection verbs (add, modify, transform...).

the prompt you add will only modify the selected zone

Image selection and iteration

After a few seconds, Seelab will suggest 3 modifications, which will appear in the bottom right-hand corner of the application. You can click on each generation to see a larger version.

image variations

image selection

Sometimes Seelab may not add or modify anything in the selected area. If this is the case, try enlarging the area to be modified a little, or move the balance slider towards “best creativity”.

Once you've selected the proposal that suits you, you can then iterate and modify other parts of the image.

Iterations

Updated on: 05/02/2026

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