Nano Banana 画像から動画
静止画像を出発点にしたいユーザー向けのページで、構図や被写体を保ちながらモーションを加える方法に集中します。
商品画像、人物写真、静止シーンに向く
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まずモーション指示を書いてからcreditsを使う
向いている利用シーン
このページは画像起点の明確な意図に絞り、ブランド総合ページとは役割を分けます。
商品紹介
商品画像や販促素材を短い動画に変えたいケースです。
ビジュアル演出
コンセプトアートや静止シーンにカメラや動きを足したいケースです。
短いモーション指示
シーン全体ではなく、動きとカメラだけを補足します。
画像から動画の進め方
画像起点の流れに集中すると、最初の失敗生成を減らしやすくなります。
ステップ 1
被写体が明確で、構図が安定した画像を選びます。
ステップ 2
プロンプトでは動きとカメラだけを追加し、画像全体を繰り返して説明しません。
ステップ 3
登録後に動画ツールで生成し、動きが弱ければプロンプトを絞って調整します。
How to make image-to-video outputs hold together
Image-to-video users care less about brand copy and more about source-image quality, motion wording, and when to switch modes.
Pick source images that survive animation
Good image-to-video starts with a frame that already looks close to the final composition.
- Use one clear subject with stable composition; crowded collages and weak focal points usually animate poorly.
- Start from the image that already matches your final framing, because the motion prompt should add movement, not redesign the scene.
- The prompt box accepts uploaded images up to 10MB, so compress oversized files before testing.
Write motion prompts that preserve the image
The goal is to animate the chosen frame, not to re-describe every visual detail from scratch.
- Describe what moves, how fast it moves, and how the camera behaves; avoid rewriting colors, wardrobe, or background unless they must change.
- Good first-pass instructions are small: slow dolly in, subtle head turn, light breeze, steam rising, shallow handheld drift.
- When motion feels too aggressive, reduce the number of verbs and remove competing camera directions.
Know when to use single frame or start/end frames
Different image inputs solve different motion problems.
- Use a single image when you want one static frame to come alive without changing the composition too much.
- Use start and end frames when you need a defined transition, reveal, or before-and-after movement target.
- If the image is only a loose reference and not a frame lock, text-to-video usually gives more creative freedom.
Image-to-video prompt cases users can adapt immediately
The highest-value examples keep the original image stable and only add the motion needed for the shot.
Product beauty shot
Use this when the uploaded image is already the approved hero frame for an ecommerce or launch asset.
Prompt
Preserve the uploaded composition. Slow dolly in toward the product. Soft rim light catches the bottle edges. Tiny condensation drops form and slide down. Subtle steam rises behind the product. No new objects, no scene changes, no sudden camera shake.
Why it works: It locks composition first, then adds a small number of believable motions that improve depth and premium feel.
Next step: If the motion feels too busy, remove either the steam or the condensation and keep only one secondary effect.
Portrait animation
Use this when the face, wardrobe, and framing are already right and you only want life in the shot.
Prompt
Keep the uploaded portrait unchanged. Slight head turn toward camera, natural blink, light breeze moving a few strands of hair, gentle handheld drift, warm late-afternoon light. Keep background stable, no extra gestures, no scene transition.
Why it works: Portrait prompts usually fail when they ask for too many actions. This one keeps identity and framing stable.
Next step: If identity drifts, shorten the motion line and keep only blink plus one small head movement.
Atmospheric still frame
Use this for concept art, posters, or moody still scenes that need subtle motion rather than dramatic action.
Prompt
Preserve the uploaded composition. Slow push-in. Smoke drifts across the frame. Fabric edges move slightly in the wind. Light flickers softly on background surfaces. No cuts, no new characters, no camera whip.
Why it works: It turns a static artwork into a living shot without forcing a full narrative change.
Next step: If the background changes too much, add keep background stable and remove one atmospheric effect.
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