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  • When to Use Outpainting
  • How to Access
  • Direction Controls
  • Prompting for Outpainting
  • Workflow Tips
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Outpainting

Expand your image beyond its original borders with AI-generated content.

Musein Team·2026-05-23
Image ToolsEditingExpansion

Outpainting extends an image beyond its original boundaries. The AI generates new content that matches the existing image's style, lighting, and composition, effectively expanding the canvas in any direction.

When to Use Outpainting

  • Change image aspect ratio from portrait to landscape or vice versa
  • Add context around a subject — show what's outside the frame
  • Create wider compositions for banners, headers, or panoramic crops
  • Extend backgrounds for video or animation projects

How to Access

Select an image node and click the Outpainting button in the node toolbar. The tool panel shows direction selectors and an optional prompt field.

Direction Controls

Choose which edge to expand: left, right, up, or down. You can expand multiple directions in sequence or all at once if the tool supports multi-direction selection.

Each direction expansion adds a configurable amount of pixels. The default is usually 25% of the original dimension, but you can adjust based on your needs.

Prompting for Outpainting

For best results, describe what should appear in the newly expanded area. A prompt like "a continuation of the forest path with sunlight filtering through trees" guides the AI to generate content that feels like a natural extension.

If you don't provide a prompt, the AI infers the content from the pixels at the image edge, which works well for textures and patterns but may drift for complex scenes.

Workflow Tips

  • Expand incrementally — small extensions produce more consistent results
  • Start with one direction at a time to maintain control
  • Use a descriptive prompt for complex scenes
  • After outpainting, check edges at 100% zoom for seams
  • Run a light inpaint on the seam area if needed

Continue reading

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Background Cutout

Remove image backgrounds with one click and generate transparent PNGs.

01

Canvas Quick Start

Learn how to navigate the canvas, use the minimap, add nodes, and connect them into workflows.

02

Node Types Explained

A complete guide to every node type on the canvas and what each one is used for.

03

Node List Navigation

Use the node list to search, filter, rename, and locate nodes in large multi-step canvases.

04

Keyboard Shortcuts Reference

A complete list of keyboard shortcuts to speed up your workflow on the canvas.

05

Node Editing Essentials

Learn how to select, move, copy, delete, and organize nodes efficiently on the canvas.

06

Prompt Input Panel Guide

How to use the rich text prompt editor, @ mention references, and reference ordering on the canvas.

07

Prompt Mentions

Type @ inside the prompt box to insert numbered references and personal assets as structured mention tokens.

08

Undo and Redo — Snapshot History

How the canvas undo system works, what it tracks, and how to use it effectively.

09

History Browser

Review generated image, video, and audio results by project, then reopen or reuse them without leaving the canvas.

10

Node Preview & Reuse

Open a node result in a larger preview, inspect the prompt and parameters, then download or copy the details for reuse.

11

Aspect Ratio Lock — Canvas-Level Default

Set a default aspect ratio at the canvas level and lock it for all video generations.

12

Character Compliance — Portrait Consistency Check

Verify generated characters match an approved reference portrait for brand and campaign consistency.

13

Virtual Final Cut — Sequence Clip Preview

Combine multiple video clips into a sequential preview that plays one after another.

14

Director Workbench: Camera Blocking, Capture Preview, and Send Back

Use the Director 3D node to block actors, preview cameras, review saved frames, and confirm destructive actions before moving references back to the main canvas.

15

Video Parameters — Resolution, Duration, Model & More

Configure video generation settings including resolution, duration, audio, model variant, and advanced options.

16

High Resolution Upscale

Upscale your images 2x or 4x with AI-powered detail enhancement.

17

Inpaint

Paint over areas of an image to regenerate them with new AI-generated content.

18

Erase

Quickly brush away unwanted content and let AI fill the gap automatically.

19

Create Nodes by Uploading Files

Upload a file from the Add Node menu, and the system automatically creates the matching node type.

20

Batch Download Resources

Select multiple nodes on the canvas and download all their resources as a single ZIP file.

21

Outpainting

Expand your image beyond its original borders with AI-generated content.

22

Background Cutout

Remove image backgrounds with one click and generate transparent PNGs.

23

Change Angle

Transform image perspective using 3D camera angle controls powered by AI.

24

Relight

Adjust lighting direction, color temperature, and intensity with real-time 3D preview.

25

Multi-View Grid

Generate a 3x3 storyboard grid with varied camera angles of the same scene.

26

Character Three-View

Generate front, side, and back views of a character with consistent style.

27

Face Three-View

Generate front, side, and back views of a character's face with consistent style.

28

Temporal Frame

Generate consistent video frames before or after a keyframe for animation pipelines.

29

Storyboard 25

Generate a 5x5 movie storyboard grid with consistent characters and mood.

30

Cinematic Relight

Apply auto color grading presets to achieve a one-click cinematic look.

31

Panorama

Extend the current scene image into a complete panoramic environment of the same location for immersive scene work and environment reference.

32

Grid Split

Split an image into a grid of sub-images for storyboard or comic layouts.

33

Rotate & Flip

Rotate and mirror images on the canvas with a live preview before applying.

34

Grid Reorder

Rearrange image cells by swapping their positions in the grid.

35

AI Copilot: How the Right-Side Chat Panel Drives Canvas Work

Use the real ChatPanel preview to understand how Copilot and Video Agent fit into canvas creation.

36

Agentic Pipeline: Automated Multi-Step Generation

Let AI plan and execute multi-step workflows with stage-by-stage review.

37

Batch Confirmation: Review Multiple Generations at Once

When multiple nodes generate simultaneously, review, approve, or reject them all in one place.

38

Team Collaboration

Create teams, switch between team workspaces, manage team points, and use sharing plus ownership transfer for collaboration handoff.

39

Multi-Canvas Management

Create, organize, and switch between multiple canvases in a single project.

40

Lens Combo: Professional Camera Control

Master camera body, lens, focal length, and aperture controls for film-making level shot management.

41

Style Selection

Browse and apply visual style presets for consistent image and video output.

42

Model Parameters & Dynamic Controls

Configure model-specific parameters with a dynamic UI that adapts to the selected model.

43

Node Auto Layout (ELK)

One-click canvas organization using the ELK layout engine. Auto-arrange connected nodes into clean pipelines.

44

Advanced Canvas Operations

Speed up complex workflows with multi-select actions, batch connections, and faster downstream node creation.

45

Alignment Guides

Show horizontal and vertical guides while dragging, then snap a node to nearby edges or centers when alignment is close enough.

46

Asset Management

Create, browse, and reuse assets across canvases. Organize your library by type, project, and date.

47

Asset Library Workflow

Organize reusable results into private or team folders, search quickly, and send saved assets back onto the canvas.

48

Share Canvas

Share canvases with teammates via links, publish as templates, or transfer ownership.

49

Canvas Collaboration

Open a shared canvas in a live review session, see who is in the room, and clone the work into your own workspace when you need to edit.

50

Ownership Transfer

Move projects between personal and team spaces so ownership follows the current collaboration scope.

51

Report Issue: Submit Product Feedback from the User Menu

Open the feedback form from the user profile dropdown to report bugs, attach screenshots, and review what you have already submitted.

52

Canvas Templates

Publish canvases as templates, browse the template library, and apply templates to new projects.

53

Template Browser

Browse template categories, preview a workflow, and apply it to the current canvas without rebuilding the structure manually.

54

Canvas Auto Recovery: Agentic Task Resumption

In-progress agentic generation tasks resume automatically after a page reload.

55

Team Member Quotas

Set monthly point limits for active teammates, review used/limit from the member list, and adjust quota policy without leaving team management.

56

Script Breakdown (Legacy): Review Characters and Scene-Based Shot Tables

Script Breakdown (Legacy) is best for character tables, scene-grouped shot tables, gallery review, and CSV export.

57

Arena Submission Guide: Register → Create → Submit

Walk through the full arena participation flow: register for an activity, create a project, produce your final cut in workspace, submit it, and browse the public submissions list.

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