| name | nanobanana-prompts |
| description | NanoBanana(Google Gemini画像生成)向けの高品質プロンプトを生成。画像生成、編集、フェイススワップ、背景変更、キャラクター一貫性のプロンプト作成を支援。 |
NanoBanana Pro Prompt Engineer
Google Gemini NanoBanana / NanoBanana Pro 向けの最適化されたプロンプトを生成するスキル。 100-200語の簡潔で機能的なプロンプトを生成します。
When to Use This Skill
以下の場合にこのスキルを使用:
- 「画像プロンプトを作って」「NanoBananaプロンプト」
- 「顔を入れ替えて」「フェイススワップ」
- 「背景を変更して」「人物を別の場所に」
- 「同じキャラクターで別のシーン」
- 「衣装を統一して」「同じ服装で」
- 「スタイルを適用して」
NanoBanana Pro の特徴
- 32,768トークン の入力に対応(従来モデルの64倍以上)
- 最大14枚の参照画像 - Identity Locking対応
- Markdown/JSON 形式を理解
- 強力なプロンプト遵守 - 指示通りの画像を生成
- 画像編集 - 複数の同時編集が可能
- テキストレンダリング - 多言語テキストを画像内に正確に描画
- 4K高解像度出力 - プロフェッショナル品質
4つの黄金ルール
1. 編集を優先する
80%完成した画像には新規生成ではなく、具体的な編集指示を与える
❌ "Cool sunset photo"
✅ "Change the lighting to golden hour sunset, add warm orange tones (#FF8C00)"
2. 自然言語を使用する
キーワード羅列ではなく、完全な文で記述
❌ "car, neon, city, rain, night"
✅ "A futuristic sports car speeding through a rainy Tokyo street at night,
neon signs reflecting on wet asphalt"
3. 具体的で詳細に
❌ "a woman"
✅ "A sophisticated elderly woman in her 60s wearing a vintage Chanel-style
tweed suit, pearl earrings, silver hair in an elegant updo"
4. 文脈・目的を提供する
❌ "sandwich photo"
✅ "Professional food photography of a gourmet sandwich for a Brazilian
high-end cookbook, appetizing presentation, natural lighting"
プロンプト構造テンプレート
基本構造
[被写体の詳細説明], [構図・アングル], [照明・雰囲気], [スタイル/カメラ設定], [背景], [追加指示]
高品質プロンプト例
A professional product photograph of a sleek wireless headphone,
shot with Canon EOS 90D DSLR camera,
85mm lens, f/2.8 aperture,
soft studio lighting with rim light,
pure white background,
rule of thirds composition,
Pulitzer Prize winning cover photo quality
プロンプトテクニック
1. 強調には ALL CAPS を使用
The subject MUST be centered.
NEVER include text in the image.
ALL elements should follow the rule of thirds.
2. Markdown リストで複数指示
Make ALL of the following edits:
- Add a red ribbon on the gift box
- Change the background to sunset colors (#FF6B35, #F7931E)
- Remove the watermark in the corner
- Increase the contrast by 20%
3. 詳細な色指定(HEXコード併用)
The dress should be royal purple (#9F2B68),
with gold accents (#FFD700) on the embroidery
4. カメラ・構図キーワード
| カテゴリ | キーワード例 |
|---|---|
| カメラ | Canon EOS 90D, Sony A7III, Hasselblad X2D |
| レンズ | 85mm portrait lens, 24mm wide angle, 50mm f/1.4 |
| 構図 | rule of thirds, golden ratio, centered composition |
| 照明 | soft diffused lighting, rim light, golden hour |
| 品質 | Pulitzer Prize winning, award-winning photography |
5. JSON形式での詳細指定(上級)
{
"subject": {
"type": "person",
"gender": "female",
"age": "mid-20s",
"hair": "long black hair with subtle waves",
"expression": "gentle smile, looking at camera"
},
"clothing": {
"top": "white silk blouse",
"accessories": "pearl necklace"
},
"setting": {
"location": "modern office with large windows",
"lighting": "natural daylight from left side",
"time": "late afternoon, golden hour"
},
"style": "professional corporate portrait, magazine quality"
}
カテゴリ別プロンプトテンプレート
ポートレート
Professional headshot portrait of [subject description],
shot with 85mm lens at f/1.8,
soft Rembrandt lighting,
shallow depth of field with bokeh background,
neutral expression, direct eye contact,
high-end fashion magazine quality
商品写真
E-commerce product photography of [product],
pure white background (#FFFFFF),
soft diffused lighting from multiple angles,
slight shadow underneath for depth,
centered composition,
ultra high resolution, commercial quality
風景
Breathtaking landscape photograph of [scene],
shot during golden hour,
dramatic clouds in the sky,
foreground interest with [element],
wide angle 16mm lens,
National Geographic cover quality,
vibrant colors with natural saturation
イラスト・アート
Digital illustration of [subject],
[art style: anime/watercolor/oil painting/vector],
[color palette description],
detailed line work,
professional concept art quality,
trending on ArtStation
広告・マーケティング
High-impact advertising visual for [product/service],
bold composition with [主要要素],
brand colors: [HEXコード],
clean modern aesthetic,
persuasive visual hierarchy,
award-winning advertising campaign quality
画像編集プロンプト(Pro Engineer機能)
フェイススワップ(顔の入れ替え)
Using Image 1 as the face reference and Image 2 as the body/scene reference:
- PRECISELY preserve the facial features from Image 1 (eyes, nose, mouth shape, skin tone)
- Maintain the exact facial proportions and distinctive characteristics
- Seamlessly blend the face onto the body in Image 2
- Match the lighting direction and color temperature of Image 2
- Preserve natural skin texture and shadows
- ENSURE no distortion or uncanny valley effect
Output: A natural-looking composite where the person from Image 1 appears authentically in the scene from Image 2
背景変更(人物を別の場所に)
Replace the background while preserving the subject with these specifications:
- NEW BACKGROUND: [詳細な背景説明、場所、雰囲気]
- Lighting adjustment: Match subject lighting to new environment
(light source direction: [方向], color temperature: [warm/cool/neutral])
- Edge blending: Seamless natural transitions, no visible cutout lines
- Shadow preservation: Cast appropriate shadows based on new light source
- Reflection handling: Add/adjust reflections if scene requires (water, glass, etc.)
- Atmospheric integration: Apply consistent haze, color grading to unify scene
CRITICAL: Subject MUST appear naturally present in the new location
衣装の統一(複数画像で同じ服装)
Apply consistent outfit across all provided images:
- REFERENCE OUTFIT from Image [N]: [詳細な服装説明]
- Maintain EXACT: color (#HEX), fabric texture, fit, style details
- Adapt naturally to each pose and lighting condition
- Preserve wrinkles and folds appropriate to body position
- Keep accessories consistent: [アクセサリー詳細]
- Match color saturation and brightness across all outputs
ALL images MUST show the identical outfit with natural variations only for pose/lighting
キャラクター一貫性(Identity Locking)
Generate new scene maintaining character identity from reference images:
IDENTITY LOCK - Preserve from reference Image(s) [1-14]:
- Facial structure: exact proportions, distinctive features
- Skin tone and texture
- Hair: color, style, length, texture
- Body type and proportions
- Age appearance
- Any unique characteristics: [特徴]
NEW SCENE:
- Setting: [新しい場所・状況]
- Pose: [ポーズ説明]
- Expression: [表情]
- Lighting: [照明設定]
- Camera angle: [アングル]
The character MUST be instantly recognizable as the same person from references
スタイル適用(アートスタイル変換)
Transform the image to [スタイル名] style while preserving:
- Core composition and subject placement
- Recognizable features and identity
- Overall mood and atmosphere
Style specifications:
- Art style: [具体的なスタイル: anime/oil painting/watercolor/pencil sketch/etc.]
- Color palette: [色調指定]
- Line work: [線の特徴: bold/delicate/sketchy/clean]
- Texture: [テクスチャ: smooth/rough/painterly/digital]
- Reference artist/work: [参考アーティスト or 作品]
MAINTAIN subject recognizability while fully embracing the new artistic style
複数編集の例
Edit this image with ALL of the following changes:
- Replace the sky with a dramatic sunset (#FF4500 to #800080 gradient)
- Add lens flare from the sun position
- Enhance the subject's contrast
- Remove all distracting elements in the background
- Add a subtle vignette effect
100-200語プロンプト最適化
最適なプロンプト構造(推奨)
[主題 30-40語] + [技術仕様 20-30語] + [スタイル/雰囲気 20-30語] + [制約/必須条件 30-50語]
例:ポートレート(156語)
Create a professional corporate headshot of a confident Asian businesswoman
in her early 40s. She has shoulder-length black hair with subtle highlights,
wearing a tailored navy blue blazer over a cream silk blouse. Her expression
is warm yet authoritative, with a slight smile and direct eye contact.
Technical: Shot with Canon EOS R5, 85mm f/1.4 lens, studio lighting setup
with key light at 45 degrees, fill light opposite, and hair light from above.
Shallow depth of field with creamy bokeh background in neutral gray gradient.
Style: Modern executive portrait suitable for LinkedIn and company website.
Clean, polished, Fortune 500 CEO aesthetic.
MUST include: Catch lights in eyes, natural skin texture, professional color
grading. NEVER include: Harsh shadows, overly retouched skin, distracting
background elements. Output in 4K resolution, suitable for print and digital.
品質向上のコツ
- 具体的に記述 - 「きれいな花」→「鮮やかな赤いバラ、朝露の水滴がついた花びら」
- プロ機材を指定 - カメラ、レンズ、照明を具体的に
- 品質キーワード追加 - "award-winning", "professional", "magazine quality"
- 否定形も活用 - "NO text", "NEVER include watermarks"
- 複数指示はリスト形式で
使用フロー
ユーザー: 「猫の画像のプロンプト作って」
→ スキルが以下を提供:
1. 基本プロンプト(すぐ使える版)
2. 詳細プロンプト(カスタマイズ可能版)
3. JSON形式(高精度版)
ユーザーは目的に応じて選択し、gemini-image-generator で画像生成
連携スキル
- gemini-image-generator - 生成したプロンプトで画像を生成
- copywriting-helper - 広告用画像のコンセプト立案
インタラクティブ使用例
ユーザー: 「この写真の顔を別の人に入れ替えて」
→ スキルが質問:
1. 顔の参照画像はどれですか?
2. 体/シーンの画像はどれですか?
3. 特に保持したい特徴は?
→ 最適化されたフェイススワッププロンプトを生成(100-200語)
→ gemini-image-generator で実行
ユーザー: 「同じキャラクターで別のシーンを作って」
→ スキルが質問:
1. 参照画像は何枚ありますか?(最大14枚)
2. 新しいシーンの設定は?
3. ポーズや表情の希望は?
→ Identity Locking プロンプトを生成
→ キャラクターの一貫性を保った新シーンを生成