Quickstart: Generate and verify an image's watermark using Imagen text-to-image (Console)

API reference overview: To view an overview of the API options for image generation and editing, see the imagegeneration model API reference.

Learn how to use Imagen on Vertex AI's text-to-image generation feature and verify a digital watermark (SynthID) on a generated image. This quickstart shows you how to use Imagen image generation in the Google Cloud console.

Imagen on Vertex AI pricing is based on the feature you use. For more information, see Pricing.

Image generated using Imagen on Vertex AI from the prompt: portrait of a french bulldog at the beach, 85mm f/2.8.

Before you begin

Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.
In the Google Cloud console, on the project selector page, select or create a Google Cloud project.
Roles required to select or create a project
• Select a project: Selecting a project doesn't require a specific IAM role—you can select any project that you've been granted a role on.
• Create a project: To create a project, you need the Project Creator (roles/resourcemanager.projectCreator), which contains the resourcemanager.projects.create permission. Learn how to grant roles.
Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.
Go to project selector
Verify that billing is enabled for your Google Cloud project.
Enable the Vertex AI API.
Roles required to enable APIs
To enable APIs, you need the Service Usage Admin IAM role (roles/serviceusage.serviceUsageAdmin), which contains the serviceusage.services.enable permission. Learn how to grant roles.
Enable the API
Make sure that you have the following role or roles on the project: Vertex AI User
Check for the roles
1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.

3. In the Principal column, find all rows that identify you or a group that you're included in. To learn which groups you're included in, contact your administrator.

4. For all rows that specify or include you, check the Role column to see whether the list of roles includes the required roles.
Grant the roles
1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.
3. Click Grant access.

4. In the New principals field, enter your user identifier. This is typically the email address for a Google Account.

5. In the Select a role list, select a role.
6. To grant additional roles, click Add another role and add each additional role.
7. Click Save.

In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

Roles required to select or create a project

• Select a project: Selecting a project doesn't require a specific IAM role—you can select any project that you've been granted a role on.
• Create a project: To create a project, you need the Project Creator (roles/resourcemanager.projectCreator), which contains the resourcemanager.projects.create permission. Learn how to grant roles.

Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.

Go to project selector

Verify that billing is enabled for your Google Cloud project.

Enable the Vertex AI API.

Roles required to enable APIs

To enable APIs, you need the Service Usage Admin IAM role (roles/serviceusage.serviceUsageAdmin), which contains the serviceusage.services.enable permission. Learn how to grant roles.

Enable the API

Make sure that you have the following role or roles on the project: Vertex AI User

Check for the roles

1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.

3. In the Principal column, find all rows that identify you or a group that you're included in. To learn which groups you're included in, contact your administrator.

4. For all rows that specify or include you, check the Role column to see whether the list of roles includes the required roles.

Grant the roles

1. In the Google Cloud console, go to the IAM page.

   Go to IAM
2. Select the project.
3. Click Grant access.

4. In the New principals field, enter your user identifier. This is typically the email address for a Google Account.

5. In the Select a role list, select a role.
6. To grant additional roles, click Add another role and add each additional role.
7. Click Save.

Generate images and save a local copy

Send the text-to-image generation request using the Google Cloud console.

1. In the Google Cloud console, go to the Vertex AI > Media Studio page.

   Go to Media Studio

2. In the Prompt (Write your prompt here) field, enter the following prompt:

    portrait of a french bulldog at the beach, 85mm f/2.8
   

3. If not selected, in the Model options box in the Parameters panel, select Imagen 3.

4. If not selected, in the Aspect ratio section in the Parameters panel, select 1:1.

5. In the Number of results section, change the Number of results to 2.

6. Click Generate.

   Generating images produces images similar to the following images:

   

7. To save a local copy of an image, click one of the images.

8. In the Image details window that opens, click Export.

9. In the Export image dialog box, click Export.

Verify an image's digital watermark

After you generate watermarked images, you can verify the digital watermark of the novel images.

1. Create generated images and save a local copy as you did in the previous step.

2. In the Image detail window, click Export.

3. In the lower panel, click Verify.

4. Click Upload image.

5. Select a locally-saved generated image.

   

Congratulations! You've just used the Imagen text-to-image generation feature to create novel images and verify the digital watermark of one of the images.

Clean up

To avoid incurring charges to your Google Cloud account for the resources used on this page, follow these steps.

Delete the project

Caution: Deleting a project has the following effects:

• Everything in the project is deleted. If you used an existing project for the tasks in this document, when you delete it, you also delete any other work you've done in the project.
• Custom project IDs are lost. When you created this project, you might have created a custom project ID that you want to use in the future. To preserve the URLs that use the project ID, such as an appspot.com URL, delete selected resources inside the project instead of deleting the whole project.

If you plan to explore multiple architectures, tutorials, or quickstarts, reusing projects can help you avoid exceeding project quota limits.

1. In the Google Cloud console, go to the Manage resources page.

   Go to Manage resources

2. In the project list, select the project that you want to delete, and then click Delete.
3. In the dialog, type the project ID, and then click Shut down to delete the project.

What's next

• Learn about all image generative AI features in the Imagen on Vertex AI overview.
• Read usage guidelines for Imagen on Vertex AI.
• Explore more pretrained models in Model Garden.
• Learn about responsible AI best practices and Vertex AI's safety filters.