AI Lab

How to access: Click the AI Lab icon in the top-left corner of the Edit interface.

In the current UI, AI Lab is grouped by capability type. The main sections are Background & Scene, Remove & Repair, Subject Adjustments, and Enhance & Restore. Depending on the editing task, related portrait, background, and color panels may also show recommendation cards or search suggestions that help you find relevant AI Lab tools more quickly.

• Background & Scene: Tools for replacing or rebuilding the visual scene around the subject.
• Remove & Repair: Tools for removing distractions and repairing unwanted people or objects.
• Subject Adjustments: Tools for targeted subject refinements.
• Enhance & Restore: Tools for recovering, restoring, and improving image quality.

Background & Scene

AI Background Fusion

AI Background Fusion helps you create more complete and atmospheric scene-based portraits through intelligent cutout, background replacement, and layered foreground composition.

Feature details

• Automatically cuts out the subject, with manual brush refinement available when needed.
• Supports both Subject Only and Subject + Connected Objects recognition modes.
• Lets you choose from official scene packs or upload custom backgrounds.
• Supports layered foreground assets for additional composition control, including foreground order adjustment.
• Allows repositioning, scaling, rotation, and horizontal / vertical flipping of the subject.
• After generation, Character Lighting can be used to improve the visual blend between the subject and the background.

Asset and upload limits

• Official packs can be filtered by scenarios such as General, Student, Sports, Children, Infant, Outdoor, and Indoor.
• Supports up to 50 foreground elements in one composition.
• Custom backgrounds support JPG / PNG / WebP; custom foregrounds currently support PNG only.
• Custom uploaded assets are limited to a maximum long side of 4000 px and 20 MB per file.

Notes

• Generated results appear in the Results list and can be saved individually or in batches.
• Saved results return to the gallery as new images.
• Unsaved AI Background Fusion results are lost when leaving the feature.
• Generation requires a background on the canvas, and the subject must remain within the visible canvas area.

Remove & Repair

Smart Removal

Removal Mode

• Magic Removal: Best suited for removing large or complex distractions and for producing more natural-looking results. 0.5 credits are used per application.
• Quick Removal: Best suited for removing smaller distractions with faster processing. 0.1 credits are used per application.
• Manual Tuning: Paint directly over areas to add or remove mask regions. Brush size and softness can be adjusted.

Supporting Tools

• Subject Protection: Protects detected subjects or associated items, with brushing limited to areas outside the subject.
• Edge Optimization: Automatically refines the transition edges around the subject.

Apply Effect: Click Remove to apply the effect. Each application uses the corresponding credits.

People removal

Passerby Selection

• Auto Detection: The system automatically identifies passerby areas. Click again to re-detect the mask. After auto detection, the manual brush can be used to refine the result.
• Manual Tuning: Paint over passerby areas to add or remove mask regions. Brush size, softness, and opacity are adjustable.

Apply Effect: Click Continue > Generate to apply the effect. Each application uses 0.3 credits.

Save Options

Choose how you would like the effects to be applied after using AI Lab (People removal / Smart Removal) and returning to the Edit interface.

• Apply to Current Image (Keep one image copy): The effect is applied directly to the current photo in the editing interface. The original source file is not modified.
• Generate Copy (Create a new copy): A new copy with the applied effect is created. You can change the storage location for generated copies in Settings.

Subject Adjustments

Belly Slimming

Use AI Lab > Belly Slimming to refine the waist and abdomen area with one click for a cleaner body silhouette.

• How to use: Click Generate, review the result in Results, and save it when you are satisfied.
• Suitable scenarios: Wedding, gown, portrait, and travel photos where the abdominal outline needs refinement.

Notes

• Some images may show weaker slimming, reduced clothing texture, visible skin texture changes on uncovered areas, or occasional unnatural abdominal definition.

Enhance & Restore

Old photo restoration

Use AI Lab > Old photo restoration to repair old photos, enhance details, and optionally add natural color to black-and-white photos.

• How to use: Click Generate, compare the results in Results, and save the version you prefer.
• Default behavior: Colorization is enabled by default.
• Output: Supports standard 2K and 4K output.
• Suitable scenarios: Yellowed, faded, scratched, damaged, or blurry old photos.

Notes

• If faces are very small or the source image is extremely blurry, the model may redraw facial details. In some cases, accessories such as glasses or necklaces may also be affected.

Detail Enhance

Use AI Lab > Detail Enhance to improve image sharpness and texture, especially in hair, facial details, and clothing patterns.

• How to use: Click Generate, compare the result in Results, and save it when you are satisfied.
• Best input range: It generally works best on 3K–5K input images, and images below 5K tend to produce more stable improvements.

Notes

• Results may be limited on noisy or heavily blurred images.
• Very high-resolution images above 5K may show limited improvement or slight local consistency issues.
• Very low-resolution images may only improve modestly.