Upload your source video
Upload a video clip up to 120 seconds. The model segments the foreground subject automatically — no green screen or manual masking required.
视频工具
AI 视频背景替换器
用基于提示词的 AI 编辑替换视频背景，无需绿幕或手动抠像，即可把主体身后的场景换成干净专业的画面。
预览video
BG Changer
Change video backgrounds through prompt-based video editing.
上传视频
MP4、MOV、WebM，最大 100MB
使用方式
如何使用 背景替换
Describe the new background
Write a specific background description in the prompt — "a rainy Tokyo street at night with neon reflections" produces a better result than just "city." For a photo-based background, attach a reference image in the image field.
Generate the background-swapped video
Submit the job. HappyHorse 1.0 Video Edit replaces background pixels while preserving subject edges, skin tones, and motion continuity across every frame.
为什么使用
为什么使用 AI Pin Maker 视频工具
按工作流组织
每个页面都把一个用户任务映射到所需视频输入和模型族。
模型匹配
使用当前线上模型列表中已验证的视频编辑端点。
可运行工具
可用工具会连接到 AI Pin Maker 视频生成工作台。
路线衔接
相关视频工具帮助从特效继续到编辑、音乐和生产流程。
常见问题
视频工具常见问题
- Does video background changing require a green screen?
- No green screen needed. The model uses semantic segmentation to identify the foreground subject automatically, then replaces background pixels while preserving subject edges and motion across all frames.
- Can I use a real location photo as the new background?
- Yes — attach a reference image of the target background in the image input field. The model will match the lighting and perspective of the reference while adapting it to the video's motion and depth.
- Will the background change look realistic for every shot?
- Results are best on shots with clear subject/background separation and minimal motion blur at edges. Fine hair, transparent materials, and fast lateral movement are harder; try adding slight motion to the description (e.g., "gentle wind rustling leaves") to blend segmentation edges.
- What video formats and lengths are supported for background changing?
- The tool accepts videos up to 120 seconds. MP4 (H.264) uploads at up to 1080p resolution work most reliably; high-bitrate or uncommon formats may be transcoded automatically before processing.
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