StableDiffusionのプロンプトにChatGPTでバリエーションを付けてみた（SDXL版）
StableDiffusion を Paperspaceや tensor.art で動かして、画像を生成しています。プロンプトは civitai.com など参考にしていますが、掲載通りではなく、自分でバリエーションを付けたくなります。人物の場合、髪型、髪の色、目の色、服装、ポーズ、背景、Photo系とイラスト系、など変えていますが、全体の雰囲気を変えたいときに、どのように書けばいいか、悩みます。そこで ChatGPTに作ってもらいました。以下はその記録です。
元のプロンプト
civitai.com の wQGtUWNkU59bR7F5さんの投稿を参照させていただきました。ありがとうございます！
参考にさせていただくプロンプト
In the mystical embrace of twilight, a photographer chooses a medium format camera to capture the enigmatic and abstract dimensions of emotions. Employing a 105mm lens, they explore the subtleties of each subject's thoughts. The contemplative side lighting casts intriguing shadows, adding an air of mystery to the scene. The fine art black and white photography style elevates the emotions to a conceptual level, where thoughts and feelings intertwine in intricate patterns. The high realism level ensures that every fine line, every furrowed brow, and every distant gaze is captured with precision. The subjects' expressions are both familiar and distant, allowing viewers to project their own interpretations onto the scene. The 4:5 aspect ratio frames the subjects in a classic and timeless composition, inviting viewers to peer into the depths of their emotions.試しにこのプロンプトで、tensor.art で生成すると以下のようでした。モデルは breakdomainxl_v03d です。(元の画像も、同じモデルを使っています）
元の画像とかなり雰囲気が違いますが、バリエーションを付けるのが目的なので、このまま進めます。
バリエーション１（幻想的）
BingGPTで「より創造的に」設定で、以下を依頼しました。
以下に記すのはStable Diffusion の画像生成用のプロンプトです。これを基にして、より幻想的なニュアンスを加えて、プロンプトを新たに英語で作成してください。単語数は、元のプロントと同程度にしてください。
In the mystical embrace of twilight, a photographer chooses a medium format camera to capture the enigmatic and abstract dimensions of emotions. Employing a 105mm lens, they explore the subtleties of each subject's thoughts. The contemplative side lighting casts intriguing shadows, adding an air of mystery to the scene. The fine art black and white photography style elevates the emotions to a conceptual level, where thoughts and feelings intertwine in intricate patterns. The high realism level ensures that every fine line, every furrowed brow, and every distant gaze is captured with precision. The subjects' expressions are both familiar and distant, allowing viewers to project their own interpretations onto the scene. The 4x5 aspect ratio frames the subjects in a classic and timeless composition, inviting viewers to peer into the depths of their emotions.BingGPTの回答は以下です。
以下は、私が新たに作成したプロンプトです。幻想的なニュアンスを加えるために、いくつかの単語や表現を変えてみました。単語数は、元のプロントとほぼ同じです。
In the magical glow of dusk, a photographer selects a medium format camera to capture the elusive and abstract realms of emotions. Using a 105mm lens, they delve into the nuances of each subject's inner world. The thoughtful side lighting creates fascinating shadows, adding a touch of mystery to the scene. The fine art black and white photography style transcends the emotions to a symbolic level, where thoughts and feelings merge in complex shapes. The high realism level preserves every fine detail, every wrinkled forehead, and every faraway look with accuracy. The subjects' expressions are both intimate and alien, allowing viewers to imagine their own stories onto the scene. The 4x5 aspect ratio encloses the subjects in a classic and timeless frame, inviting viewers to gaze into the depths of their emotions."mystical embrace of twilight" (夕暮れ時の光が人々を包み込むように感じられる、神秘的で霊的な雰囲気)が "magical glow of dusk"(夕暮れ時の光が人々を魅了するように感じられる、魔法のようで不思議な雰囲気) など、替わっています。
これを基に生成した画像は以下です。雰囲気はやや違いますが、なんとも言えません。
バリエーション２（ノスタルジック）
続いて以下を依頼しました。
ありがとうございます。今度は同じプロンプトを基に、ノスタルジックなニュアンスを加えてください。単語数は元のプロンプトと同じ程度で、英語でお願いします。BingGPTの回答は以下です。
You're welcome. Here is another prompt based on the same original one, but with a nostalgic nuance. I changed some words and expressions to create a more sentimental tone. The word count is almost the same as the original prompt.
In the soft light of twilight, a photographer picks a medium format camera to capture the fleeting and abstract aspects of emotions. With a 105mm lens, they probe into the subtleties of each subject's mind. The gentle side lighting casts delicate shadows, adding a hint of mystery to the scene. The fine art black and white photography style conveys the emotions to a poetic level, where thoughts and feelings blend in graceful curves. The high realism level reveals every fine feature, every tense forehead, and every wistful look with clarity. The subjects' expressions are both close and distant, allowing viewers to relate their own memories onto the scene. The 4x5 aspect ratio frames the subjects in a classic and timeless composition, inviting viewers to look into the depths of their emotions.質問が悪かったのか、回答がすべて英語になりましたが、プロンプトは得られたので生成してみます。
遠くを見ている感じが、ノスタルジックに通じる印象も受けます。
バリエーション３（荘厳）
続いて以下を依頼しました。
ありがとうございます。今度は同じプロンプトを基に、荘厳なニュアンスを加えてください。単語数は元のプロンプトと同じ程度で、英語でお願いします。回答は以下です。
どういたしまして。こちらは、同じ元のプロンプトを基に、荘厳なニュアンスを加えたものです。いくつかの単語や表現を変えて、より壮大な雰囲気を作りました。単語数は、元のプロンプトとほぼ同じです。
In the majestic radiance of twilight, a photographer opts for a medium format camera to capture the profound and abstract facets of emotions. Utilizing a 105mm lens, they delve into the intricacies of each subject's psyche. The dramatic side lighting casts striking shadows, adding a layer of mystery to the scene. The fine art black and white photography style elevates the emotions to a sublime level, where thoughts and feelings fuse in intricate forms. The high realism level depicts every fine contour, every furrowed forehead, and every piercing look with precision. The subjects' expressions are both familiar and foreign, allowing viewers to infer their own meanings onto the scene. The 4x5 aspect ratio showcases the subjects in a classic and timeless display, inviting viewers to behold the depths of their emotions.今度は "majestic"(壮大な、威厳のある)というワードが入りました。生成してみます。
威厳のあるような雰囲気も感じます。
バリエーション４（官能的）
続いて以下を依頼しました。NSFWな内容にならないように注意も加えました。
ありがとうございます。今度は同じプロンプトを基に、官能的なニュアンスを加えてください。ポルノにならないように注意してください。単語数は元のプロンプトと同じ程度で、英語でお願いします。回答は以下です。回答全体が再び英語になりました。
You're welcome. Here is another prompt based on the same original one, but with a sensual nuance. I changed some words and expressions to create a more erotic atmosphere. I was careful not to make it pornographic. The word count is almost the same as the original prompt.
In the seductive light of twilight, a photographer chooses a medium format camera to capture the intense and abstract sides of emotions. With a 105mm lens, they explore the sensuality of each subject's expression. The suggestive side lighting casts alluring shadows, adding a hint of mystery to the scene. The fine art black and white photography style expresses the emotions to a passionate level, where thoughts and feelings mingle in voluptuous curves. The high realism level captures every fine detail, every arched eyebrow, and every smoldering look with accuracy. The subjects' expressions are both inviting and elusive, allowing viewers to fantasize their own scenarios onto the scene. The 4x5 aspect ratio frames the subjects in a classic and timeless composition, inviting viewers to admire the depths of their emotions."seductive"(誘惑的な、魅惑的な、人を引き付ける）というワードに変わりました。生成したものが以下です。
魅惑的ですね！
バリエーション５（モダンでスタイリッシュ）
続いて以下を依頼しました。
この文章に対して、モダンでスタイリッシュなニュアンスを加えてください。英語で、単語数は同じ程度でお願いします。回答は以下です。
この文章に対して、モダンでスタイリッシュなニュアンスを加えるとしたら、以下のように変えてみました。いくつかの単語や表現を変えて、より現代的で洗練された雰囲気を作りました。単語数は、元の文章とほぼ同じです。
In the captivating light of twilight, a photographer opts for a medium format camera to capture the intensity and abstraction of her emotions. With a 105mm lens, they focus on the elegance of her expression. The innovative side lighting creates stunning shadows on her face, adding a touch of mystery to the scene. The fine art black and white photography style conveys her emotions to a sophisticated level, where her thoughts and feelings merge in sleek lines. The high realism level depicts every fine detail of her features, every refined eyebrow, and every captivating look with precision. Her expression is both enticing and mysterious, allowing viewers to imagine their own scenarios with her. The 4x5 aspect ratio showcases her in a classic and timeless display, inviting viewers to appreciate the depth of her emotions."captivating"(人の心を奪う、魅惑的な)というワードが出ました。
生成画像です。
バリエーション６（華やかで鮮やかな）
依頼です。
ありがとうございます。続いて、華やかで鮮やかなニュアンスを加えてください。英語で、単語数は同程度でお願いします。回答です。
You're welcome. Here is another prompt based on the same original one, but with a vibrant and vivid nuance. I changed some words and expressions to create a more colorful and lively atmosphere. The word count is almost the same as the original prompt.
In the dazzling light of twilight, a photographer picks a medium format camera to capture the intensity and abstraction of her emotions. With a 105mm lens, they highlight the vibrancy of her expression. The creative side lighting produces vivid shadows on her face, adding a splash of mystery to the scene. The fine art black and white photography style portrays her emotions to a dynamic level, where her thoughts and feelings blend in colorful shapes. The high realism level reproduces every fine detail of her features, every expressive eyebrow, and every sparkling look with accuracy. Her expression is both attractive and enigmatic, allowing viewers to envision their own scenarios with her. The 4x5 aspect ratio frames her in a classic and timeless composition, inviting viewers to admire the depth of her emotions.生成画像です。鮮やかで華やかですね。
バリエーション７（落ち着いた穏やかな）
依頼です。
ありがとうございます。続いて、落ち着いた、穏やかなニュアンスを加えてください。英語で、単語数は同程度でお願いします。回答です。
You're welcome. Here is another prompt based on the same original one, but with a calm and serene nuance. I changed some words and expressions to create a more peaceful and soothing atmosphere. The word count is almost the same as the original prompt.
In the gentle light of twilight, a photographer selects a medium format camera to capture the intensity and abstraction of her emotions. With a 105mm lens, they examine the tranquility of her expression. The soft side lighting casts smooth shadows on her face, adding a touch of mystery to the scene. The fine art black and white photography style reflects her emotions to a harmonious level, where her thoughts and feelings flow in graceful curves. The high realism level preserves every fine detail of her features, every relaxed eyebrow, and every calm look with accuracy. Her expression is both soothing and intriguing, allowing viewers to contemplate their own scenarios with her. The 4x5 aspect ratio encloses her in a classic and timeless composition, inviting viewers to appreciate the depth of her emotions.生成画像です。穏やかな印象ですね。
生成されたプロンプトの比較
１～７までを並べて比較してみます。先頭から中ほどまでの文章の単語が置き換わっています。後ろの方は変わっていませんでした。
0 In the mystical embrace of twilight, a photographer chooses a medium format camera to capture the enigmatic and abstract dimensions of emotions. Employing a 105mm lens, they explore the subtleties of each subject's thoughts. The contemplative side lighting casts intriguing shadows, adding an air of mystery to the scene. The fine art black and white photography style elevates the emotions to a conceptual level, where thoughts and feelings intertwine in intricate patterns. The high realism level ensures that every fine line, every furrowed brow, and every distant gaze is captured with precision. The subjects' expressions are both familiar and distant, allowing viewers to project their own interpretations onto the scene. The 4:5 aspect ratio frames the subjects in a classic and timeless composition, inviting viewers to peer into the depths of their emotions.
1 In the magical glow of dusk, a photographer selects a medium format camera to capture the elusive and abstract realms of emotions. Using a 105mm lens, they delve into the nuances of each subject's inner world. The thoughtful side lighting creates fascinating shadows, adding a touch of mystery to the scene. The fine art black and white photography style transcends the emotions to a symbolic level, where thoughts and feelings merge in complex shapes. The high realism level preserves every fine detail, every wrinkled forehead, and every faraway look with accuracy. The subjects' expressions are both intimate and alien, allowing viewers to imagine their own stories onto the scene. The 4x5 aspect ratio encloses the subjects in a classic and timeless frame, inviting viewers to gaze into the depths of their emotions.
2 In the soft light of twilight, a photographer picks a medium format camera to capture the fleeting and abstract aspects of emotions. With a 105mm lens, they probe into the subtleties of each subject's mind. The gentle side lighting casts delicate shadows, adding a hint of mystery to the scene. The fine art black and white photography style conveys the emotions to a poetic level, where thoughts and feelings blend in graceful curves. The high realism level reveals every fine feature, every tense forehead, and every wistful look with clarity. The subjects' expressions are both close and distant, allowing viewers to relate their own memories onto the scene. The 4x5 aspect ratio frames the subjects in a classic and timeless composition, inviting viewers to look into the depths of their emotions.
3 In the majestic radiance of twilight, a photographer opts for a medium format camera to capture the profound and abstract facets of emotions. Utilizing a 105mm lens, they delve into the intricacies of each subject's psyche. The dramatic side lighting casts striking shadows, adding a layer of mystery to the scene. The fine art black and white photography style elevates the emotions to a sublime level, where thoughts and feelings fuse in intricate forms. The high realism level depicts every fine contour, every furrowed forehead, and every piercing look with precision. The subjects' expressions are both familiar and foreign, allowing viewers to infer their own meanings onto the scene. The 4x5 aspect ratio showcases the subjects in a classic and timeless display, inviting viewers to behold the depths of their emotions.
4 In the seductive light of twilight, a photographer chooses a medium format camera to capture the intense and abstract sides of emotions. With a 105mm lens, they explore the sensuality of each subject's expression. The suggestive side lighting casts alluring shadows, adding a hint of mystery to the scene. The fine art black and white photography style expresses the emotions to a passionate level, where thoughts and feelings mingle in voluptuous curves. The high realism level captures every fine detail, every arched eyebrow, and every smoldering look with accuracy. The subjects' expressions are both inviting and elusive, allowing viewers to fantasize their own scenarios onto the scene. The 4x5 aspect ratio frames the subjects in a classic and timeless composition, inviting viewers to admire the depths of their emotions.
5 In the captivating light of twilight, a photographer opts for a medium format camera to capture the intensity and abstraction of her emotions. With a 105mm lens, they focus on the elegance of her expression. The innovative side lighting creates stunning shadows on her face, adding a touch of mystery to the scene. The fine art black and white photography style conveys her emotions to a sophisticated level, where her thoughts and feelings merge in sleek lines. The high realism level depicts every fine detail of her features, every refined eyebrow, and every captivating look with precision. Her expression is both enticing and mysterious, allowing viewers to imagine their own scenarios with her. The 4x5 aspect ratio showcases her in a classic and timeless display, inviting viewers to appreciate the depth of her emotions.
6 In the dazzling light of twilight, a photographer picks a medium format camera to capture the intensity and abstraction of her emotions. With a 105mm lens, they highlight the vibrancy of her expression. The creative side lighting produces vivid shadows on her face, adding a splash of mystery to the scene. The fine art black and white photography style portrays her emotions to a dynamic level, where her thoughts and feelings blend in colorful shapes. The high realism level reproduces every fine detail of her features, every expressive eyebrow, and every sparkling look with accuracy. Her expression is both attractive and enigmatic, allowing viewers to envision their own scenarios with her. The 4x5 aspect ratio frames her in a classic and timeless composition, inviting viewers to admire the depth of her emotions.
7 In the gentle light of twilight, a photographer selects a medium format camera to capture the intensity and abstraction of her emotions. With a 105mm lens, they examine the tranquility of her expression. The soft side lighting casts smooth shadows on her face, adding a touch of mystery to the scene. The fine art black and white photography style reflects her emotions to a harmonious level, where her thoughts and feelings flow in graceful curves. The high realism level preserves every fine detail of her features, every relaxed eyebrow, and every calm look with accuracy. Her expression is both soothing and intriguing, allowing viewers to contemplate their own scenarios with her. The 4x5 aspect ratio encloses her in a classic and timeless composition, inviting viewers to appreciate the depth of her emotions.感想
SDXLでは、プロンプトが自然文をより解釈するようになったので、長いプロンプトで条件を詳しく書くことは多くなると思われます。ChatGPT（ここではBingGPT）を使うと、長いプロンプトに対してバリエーションを持たせて複数の単語を置き換えてくれて、そこから生成される画像の雰囲気も変わりましたので、今後もこの手法を試してみます。
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