Wan2.1 15-second image-generated video three-segment extension

This is a three-stage video-to-video upscaling and enhancement application based on Wan.

Upload a short video and enter a redraw prompt. While preserving the original video's primary subject and motion trends as much as possible, the application performs three rounds of progressive upscaling and detail redrawing, ultimately outputting a clearer, more stable enhanced video.

Ideal for:

1. Low-resolution video enhancement
2. Remastering old videos
3. Character/portrait video detail completion
4. Style-consistent video redrawing
5. HD processing of short video clips

Recommended usage:

• Choose short clips with a single primary subject, relatively stable camera angles, and minimal occlusion
• Best suited for short-to-medium length videos; uploading very long or highly complex clips from the start is not recommended
• Redraw prompts should describe the subject, action, scene, and desired texture enhancements without overly conflicting with the original video content
• For more stable results, emphasize "subject consistency, smooth motion, detail enhancement, natural lighting, and visual stability"

Recommended input example:
Maintain consistent subjects, natural and fluent motion, enhanced details, clearer hair and edges, natural lighting and shadows, stable visuals, and improved overall texture.

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