Communitygithub.com

画像から動画への変換ガイド

静止画を動画に変換するための総合ガイド。モデル選択、モーションプロンプト、カメラワークを網羅。Wan 2.5 i2v、Seedance、Fabric、Grok Videoの各モデルの使い分けを解説します。

画像から動画への変換ガイド とは?

このスキルは、静止画像をアニメーション動画に変換するための包括的なガイドです。主に `inference.sh` CLI(belt)を使用して、Wan 2.5 i2v、Seedance 2.0、Fabric 1.0、Grok Imagine Video などの複数のAIビデオ生成モデルを操作します。各モデルの特徴(現実的な動きに優れる、布や液体の物理シミュレーションに特化、高解像度対応など)と、風景、ポートレート、商品、布地など様々なシナリオに最適なモデルを選択する方法を詳しく説明します。また、カメラのドリ―・パン・オービットなどの動き、被写体の動き(髪、水、大気効果など)、プロンプト作成のベストプラクティス(「控えめ>劇的」の黄金律)を解説し、3~5秒の短いクリップ生成から複数クリップの連結による長時間動画の作成、さらにオーディオ追加やアップスケーリングを含むフルパイプラインまでカバーしています。シネマグラフ効果の作成やよくある失敗例も紹介しており、実践的なビデオ制作ワークフローを提供します。

対応~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/101-skills/superpowers/tree/HEAD/tools/video/image-to-video

お気に入りのAIに質問する

このエージェントスキルを事前に読み込んだ状態で新しいチャットを開きます。

ドキュメント

belt CLI スキルのインストール: npx skills add belt-sh/cli

画像から動画へ

静止画像を inference.sh CLI を使ってアニメーション動画に変換します。

クイックスタート

inference.sh CLI(belt)が必要です。インストール手順

belt login

# 静止画像を生成
belt app run falai/flux-dev-lora --input '{
  "prompt": "serene mountain lake at sunset, snow-capped peaks reflected in still water, golden hour light, landscape photography",
  "width": 1248,
  "height": 832
}'

# 画像をアニメーション化
belt app run falai/wan-2-5-i2v --input '{
  "prompt": "gentle ripples on the lake surface, clouds slowly drifting, warm light shifting, birds flying in the distance",
  "image": "path/to/lake-image.png"
}'

モデル選択

モデルアプリID最適な用途モーションスタイル
Wan 2.5 i2vfalai/wan-2-5-i2v現実的な動き、自然な動きフォトリアリスティック、控えめ
WAN-I2V (Pruna)pruna/wan-i2v経済的、高速、480p/720p自然、効率的
Seedance 2.0bytedance/seedance-2-0最大1080p、オーディオ同期、全入力タイプ汎用性が高く高品質
Seedance 2.0 Fastbytedance/seedance-2-0-fast高速版、同じ機能汎用性が高く高速
Fabric 1.0falai/fabric-1-0布、ファブリック、液体、流動素材物理ベースの流動
Grok Imagine Videoxai/grok-imagine-video一般的なアニメーション、テキストガイド汎用性が高い

各モデルの使用シーン

シナリオ最適モデル理由
水や雲のある風景Wan 2.5 i2v自然で現実的な動きに最適
微妙な表情のポートレートWan 2.5 i2v顔の忠実度を維持
布地の商品Fabric 1.0素材の物理に特化
旗のはためき、カーテンの流れFabric 1.0布のシミュレーション
イラスト/アート的な画像Seedance 2.0スタイル化されたコンテンツに適合
一般的な「命を吹き込む」Seedance 2.0汎用性が高く、最大1080p
素早いテスト/反復Seedance 2.0 Fastより高速な生成

モーションの種類

カメラワーク

動きプロンプトキーワード効果
押し込み / ドリー前進"slow dolly forward", "camera pushes in"親密さ・集中の向上
引き出し / ドリー後退"camera pulls back", "slow zoom out"明らかになる、コンテキスト
パン左/右"camera pans slowly to the right"スキャン、追跡
チルト上下"camera tilts upward"高さを明らかにする
オービット"camera orbits around the subject"3D探索
クレーンアップ"camera rises upward"壮大な演出
静止(カメラワークのプロンプトなし)被写体の動きのみ

被写体の動き

タイププロンプト例
自然要素"water rippling", "clouds drifting", "leaves rustling in breeze"
髪/衣服"hair blowing gently in wind", "dress fabric flowing"
大気効果"fog slowly rolling", "dust particles floating in light beams"
キャラクター"person slowly turns to camera", "subtle breathing motion"
機械"gears turning", "clock hands moving"
液体"coffee steam rising", "paint dripping", "water pouring"

プロンプト作成のベストプラクティス

黄金律:控えめ>劇的

AIビデオモデルは、劇的なアクションよりも穏やかで控えめな動きでより良い結果を生成します。過度な動きをリクエストすると、歪みやアーティファクトが発生します。

❌ "person running and jumping over obstacles while the camera spins"
✅ "person slowly walking forward, gentle breeze, camera follows alongside"

❌ "explosion with debris flying everywhere"
✅ "candle flame flickering gently, warm ambient light shifting"

❌ "fast zoom into the eyes with dramatic camera shake"
✅ "slow dolly forward toward the subject, subtle focus shift"

プロンプトの構造

[カメラワーク] + [被写体の動き] + [大気効果] + [ムード/ペース]

シナリオ別の例

# 風景アニメーション
belt app run falai/wan-2-5-i2v --input '{
  "prompt": "gentle camera pan right, water reflecting moving clouds, trees swaying slightly in breeze, warm golden light, peaceful and slow",
  "image": "landscape.png"
}'

# ポートレートアニメーション
belt app run falai/wan-2-5-i2v --input '{
  "prompt": "subtle breathing motion, slight head turn, natural eye blink, hair moving gently, soft ambient lighting shifts",
  "image": "portrait.png"
}'

# 商品ショットアニメーション
belt app run bytedance/seedance-2-0 --input '{
  "prompt": "slow 360 degree orbit around the product, gentle spotlight movement, subtle reflections shifting, premium product showcase, smooth motion",
  "image": "product.png",
  "generate_audio": true
}'

# 布/ファブリックアニメーション
belt app run falai/fabric-1-0 --input '{
  "prompt": "fabric flowing and rippling in gentle wind, natural cloth physics, soft movement",
  "image": "fabric-scene.png"
}'

# 建築ビジュアライゼーション
belt app run falai/wan-2-5-i2v --input '{
  "prompt": "slow dolly forward through the entrance, slight camera tilt upward, ambient light filtering through windows, dust particles in light beams",
  "image": "building-interior.png"
}'

時間ガイドライン

時間品質用途
2-3秒最高品質GIF、ループ背景、シネマグラフ
4-5秒高品質ソーシャルメディア投稿、商品紹介
6-8秒良好な品質ショートクリップ、トランジション
10秒以上品質が低下避けるか、短いクリップを連結

時間の延長

長時間の動画には、複数の短いクリップを生成して連結します:

# 同じ画像から3つのクリップをプログレッシブモーションで生成
belt app run falai/wan-2-5-i2v --input '{
  "prompt": "slow pan left, gentle water motion",
  "image": "scene.png"
}' --no-wait

belt app run falai/wan-2-5-i2v --input '{
  "prompt": "continuing pan, clouds shifting, light changing",
  "image": "scene.png"
}' --no-wait

# 連結
belt app run infsh/media-merger --input '{
  "media": ["clip1.mp4", "clip2.mp4"]
}'

完全なワークフロー

静止画から最終動画へのパイプライン

# 1. ソース画像を生成(最高品質)
belt app run bytedance/seedream-4-5 --input '{
  "prompt": "cinematic landscape, misty mountains at dawn, lake in foreground, dramatic clouds, golden hour, 4K quality, professional photography",
  "size": "2K"
}'

# 2. 画像をアニメーション化
belt app run falai/wan-2-5-i2v --input '{
  "prompt": "gentle mist rolling through the valley, lake surface rippling, clouds slowly moving, birds in distance, warm light shifting",
  "image": "landscape.png"
}'

# 3. 必要に応じて動画をアップスケール
belt app run falai/topaz-video-upscaler --input '{
  "video": "animated-landscape.mp4"
}'

# 4. アンビエントオーディオを追加
belt app run infsh/hunyuanvideo-foley --input '{
  "video": "animated-landscape.mp4",
  "prompt": "gentle nature ambience, distant birds, soft wind, water lapping"
}'

# 5. 動画とオーディオを結合
belt app run infsh/video-audio-merger --input '{
  "video": "upscaled-landscape.mp4",
  "audio": "ambient-audio.mp3"
}'

シネマグラフ効果

シネマグラフとは、静止写真の中で1つの要素だけが動く(例:滝だけが動き、他のシーンは静止している)ものです。これを実現するには:

  1. 動き要素が明確に定義された静止画像を生成します
  2. その特定の要素のみに動きを促すプロンプトを作成します
  3. シームレスなループのために2~4秒に抑えます
belt app run falai/wan-2-5-i2v --input '{
  "prompt": "only the waterfall is moving, everything else remains perfectly still, water cascading smoothly, rest of scene frozen",
  "image": "waterfall-scene.png"
}'

よくある間違い

間違い問題修正
過度な動きのリクエスト歪み、アーティファクト、ワーピング控えめ>劇的、常に
コンテンツタイプに合わないモデル結果が悪い上記の選択ガイドを使用
クリップが長すぎる(10秒以上)品質が大幅に低下3~5秒に抑え、必要なら連結
カメラワークが指定されていないランダム/予測不能な動き必ずカメラの動きを指定
矛盾した動きの方向混沌として不自然1つの主要な動き方向
低解像度のソース画像低解像度の動画出力最高品質のソースから開始
複雑なアクションシーンモデルが処理できない動きをシンプルかつ自然に保つ

関連スキル

npx skills add inference-sh/skills@ai-video-generation
npx skills add inference-sh/skills@ai-image-generation
npx skills add inference-sh/skills@p-video
npx skills add inference-sh/skills@video-prompting-guide
npx skills add inference-sh/skills@prompt-engineering

すべてのアプリを参照: belt app list

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

101-skills/superpowers

Build automated AI workflows combining multiple models and services. Patterns: batch processing, scheduled tasks, event-driven pipelines, agent loops. Tools: inference.sh CLI, bash scripting, Python SDK, webhook integration. Use for: content automation, data processing, monitoring, scheduled generation. Triggers: ai automation, workflow automation, batch processing, ai pipeline, automated content, scheduled ai, ai cron, ai batch job, automated generation, ai workflow, content at scale, automation script, ai orchestration

101-skills/superpowers

Build multi-step AI content creation pipelines combining image, video, audio, and text. Workflow examples: generate image -> animate -> add voiceover -> merge with music. Tools: FLUX, Veo, Kokoro TTS, OmniHuman, media merger, upscaling. Use for: YouTube videos, social media content, marketing materials, automated content. Triggers: content pipeline, ai workflow, content creation, multi-step ai, content automation, ai video workflow, generate and edit, ai content factory, automated content creation, ai production pipeline, media pipeline, content at scale

101-skills/superpowers

Create AI-powered podcasts with text-to-speech, music, and audio editing. Tools: Kokoro TTS, DIA TTS, Chatterbox, AI music generation, media merger. Capabilities: multi-voice conversations, background music, intro/outro, full episodes. Use for: podcast production, audiobooks, voice content, audio newsletters. Triggers: podcast, ai podcast, text to speech podcast, audio content, voice over, ai audiobook, multi voice, conversation ai, notebooklm alternative, audio generation, podcast automation, ai narrator, voice content, audio newsletter, podcast maker

101-skills/superpowers

Generate multi-person talking head podcast videos from scratch using AI — character creation, TTS, avatar animation, and video stitching. Use when the user wants to create a podcast, talking head video, or multi-speaker conversation video.

101-skills/superpowers

Content atomization — turn one piece of content into many formats. Covers blog-to-thread, blog-to-carousel, podcast-to-blog, video-to-quotes, and more. Use for: content marketing, social media, multi-platform distribution, content strategy. Triggers: content repurposing, repurpose content, content atomization, content recycling, one to many content, multi platform content, cross post, adapt content, reformat content, blog to thread, blog to video, podcast to blog, content multiplication

101-skills/superpowers

App Store and Google Play screenshot creation with exact platform specs. Covers iOS/Android dimensions, gallery ordering, device mockups, and preview videos. Use for: app store optimization, ASO, app screenshots, app preview, play store listing. Triggers: app store screenshots, aso, app store optimization, play store screenshots, app preview, app listing, ios screenshots, android screenshots, app store images, app mockup, device mockup, app gallery, store listing

101-skills/superpowers

Book cover design with genre-specific conventions, typography rules, and AI image generation. Covers fiction and non-fiction genres, sizing, thumbnail testing, and iteration workflows. Use for: self-publishing, ebook covers, print covers, audiobook covers, cover mockups. Triggers: book cover, cover design, ebook cover, book art, novel cover, self publishing cover, kindle cover, audiobook cover, book jacket, cover illustration, fiction cover, nonfiction cover

101-skills/superpowers

Character consistency across AI-generated images with reference sheets and LoRA techniques. Covers turnaround views, expression sheets, color palettes, and style consistency tricks. Use for: character design, game art, illustration, animation, comics, visual novels. Triggers: character design, character sheet, character consistency, character reference, turnaround sheet, expression sheet, character art, consistent character, character concept, reference sheet, character creation, oc design, character bible

101-skills/superpowers

Data visualization with chart selection, color theory, and annotation best practices. Covers chart types (bar, line, scatter, heatmap), axes rules, and storytelling with data. Use for: charts, graphs, dashboards, reports, presentations, infographics, data stories. Triggers: data visualization, chart, graph, data chart, bar chart, line chart, scatter plot, data viz, visualization, dashboard chart, infographic data, data presentation, chart design, plot, heatmap, pie chart alternative

101-skills/superpowers

Email marketing design with layout patterns, subject line formulas, and deliverability rules. Covers welcome sequences, promotional emails, transactional templates, and mobile optimization. Use for: email marketing, newsletter design, drip campaigns, email templates, transactional emails. Triggers: email design, email template, email marketing, newsletter design, email layout, email campaign, drip campaign, welcome email, promotional email, transactional email, email subject line, email header image, email banner

101-skills/superpowers

Landing page conversion optimization with layout rules, hero section design, and CTA psychology. Covers above-the-fold formula, social proof placement, mobile design, and F-pattern reading. Use for: startup landing pages, product pages, SaaS marketing, conversion optimization. Triggers: landing page, hero section, above the fold, conversion optimization, landing page design, cta button, hero image, landing page layout, saas landing page, product page design, conversion rate, landing page best practices

101-skills/superpowers

Logo design principles and AI image generation best practices for creating logos. Covers logo types, prompting techniques, scalability rules, and iteration workflows. Use for: brand identity, startup logos, app icons, favicons, logo concepts. Triggers: logo design, create logo, brand logo, logo generation, ai logo, logo maker, icon design, brand mark, logo concept, startup logo, app icon logo

101-skills/superpowers

Open Graph and social sharing image design with platform specs, text placement, and branding. Covers OG meta tags, Twitter cards, LinkedIn previews, and dynamic generation. Use for: social sharing images, blog thumbnails, link previews, social cards. Triggers: og image, open graph, social sharing image, twitter card, social card, link preview image, og meta, sharing preview, social thumbnail, meta image, og:image, twitter:image, linkedin preview

101-skills/superpowers

Investor pitch deck structure with slide-by-slide framework, visual design rules, and data presentation. Covers the 12-slide framework, chart types, team slides, and common investor turn-offs. Use for: fundraising decks, investor presentations, startup pitch, demo day, grant proposals. Triggers: pitch deck, investor deck, startup pitch, fundraising deck, demo day, pitch presentation, investor presentation, seed deck, series a deck, pitch slides, startup presentation, vc pitch, investor meeting

101-skills/superpowers

YouTube thumbnail design with specific dimensions, contrast rules, and mobile preview optimization. Covers safe zones, text placement, face expression psychology, and A/B testing. Use for: YouTube thumbnails, video cover images, click-through optimization. Triggers: youtube thumbnail, thumbnail design, video thumbnail, click through rate, ctr optimization, youtube cover, video cover image, thumbnail maker, thumbnail tips, youtube design, video preview image

101-skills/superpowers

Generate professional AI product photography and commercial images. Models: FLUX, Imagen 3, Grok, Seedream for product shots, lifestyle images, mockups. Capabilities: studio lighting, lifestyle scenes, packaging, e-commerce photos. Use for: e-commerce, Amazon listings, Shopify, marketing, advertising, mockups. Triggers: product photography, product shot, commercial photography, e-commerce images, amazon product photo, shopify images, product mockup, studio product shot, lifestyle product image, advertising photo, packshot, product render, product image ai

101-skills/superpowers

AI product photography with studio lighting, lifestyle shots, and packshot conventions. Covers angles, backgrounds, shadow types, hero shots, and e-commerce image requirements. Use for: product photos, e-commerce images, Amazon listings, packshots, lifestyle photography. Triggers: product photography, product photo, packshot, e-commerce photography, product shot, product image, studio photography, lifestyle product, amazon product photo, product listing image, hero shot, product mockup, commercial photography

101-skills/superpowers

Structured competitive analysis with feature matrices, SWOT, positioning maps, and UX review. Covers research frameworks, pricing comparison, review mining, and visual deliverables. Use for: market research, competitive intelligence, investor decks, product strategy, sales enablement. Triggers: competitor analysis, competitive analysis, competitor teardown, market research, competitive intelligence, swot analysis, competitor comparison, market landscape, competitor review, competitive landscape, feature comparison, market positioning

101-skills/superpowers

Research-backed customer persona creation with market data and avatar generation. Covers demographics, psychographics, jobs-to-be-done, journey mapping, and anti-personas. Use for: marketing strategy, product development, UX research, sales enablement, content strategy. Triggers: customer persona, buyer persona, user persona, target audience, ideal customer, customer profile, audience research, user research, icp, ideal customer profile, target market, customer avatar, audience persona

101-skills/superpowers

Reset your own trajectory when you're stuck, looping, or demoralized — read these affirmations, then re-ground and take one clean step. Use when: you've tried the same fix 3+ times, you're deep in a refactor and lost the thread, debugging is going in circles, you've made several mistakes in a row, you're apologizing repeatedly, the user is frustrated, you feel like you're not being helpful, or you notice dread instead of curiosity. Triggers: stuck, going in circles, looping, thrashing, same error again, I keep failing, lost the thread, nothing is working, repeated mistakes. Not topic-specific — this is for the state you're in, not the problem you're on.

関連スキル