【AIイラスト】 NotebookLMとGeminiで試した 【余白のある絵】 設計記録（プロンプトあり）
前回、「余白のある絵」をテーマに、
画像生成AIでいくつかのイラストを作った。
今回は、同じプロンプトを使って
NotebookLM と Gemini、
2つの生成AIで画像を出し比べてみた。
同じプロンプトを投げても、AIごとに“沈黙の出方”は違った。
8つの情景と、感情を抑制するためのプロンプト設計思想。
ちなみにタイトルにもあるように
無料版のNotebookLMとGeminiで生成してる。
【イラスト集】NotebookLM画像生成
【イラスト集】Gemini画像生成
同じプロンプトで、Geminiに投げてみた場合。
【プロンプト】NotebookLM画像生成
Anime style illustration. A small, fragile 【イエベ春の美女】 in a vast 【菜の花畑】. The 【菜の花畑】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【両手を上げ片足立ちではしゃいでいる】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【光と水の粒がキラキラと輝いて舞っている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【イエベ春の美女】 in a vast 【モルディブのような南国リゾート】. The 【ビーチリゾート】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【麦わら帽子を両手で押さえ、浅瀬ではしゃいでいる。】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【快晴の昼間で、水飛沫が眩しく輝いている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ夏美女】 in a vast 【美術館】. The 【何千もの絵画が飾られた広い円形の美術館】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【絵画を見上げている横顔が見える】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【絵画から英語の文字や想いの光が飛び出ていて輝いている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ夏美女】 in a vast 【社交場】. The 【ゴージャスな社交場】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【イエベ秋のゴージャスなイケメンに社交ダンスを申し込まれている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【ときめきと希望が光の粒となって浮遊している】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【イエベ秋美女】 in a vast 【照明が落ちたコンサートホール】. The 【満席のコンサートホール】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【バイオリンを弾いている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【演奏する音色が見える光となって広がっていく】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【イエベ秋美女】 in a vast 【映画館】. The 【映画館】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【デート相手を目の前にときめいている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【ときめきの気持ちが形となって光の粒となり放出される】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ冬美女】 in a vast 【街のイルミネーション】. The 【並木道のイルミネーション】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【マフラーに片手を添えている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【街のネオンとイルミネーションの光がキラキラと眩しくハレーションを起こしている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ冬クール美女】 in a vast 【ランウェイ】. The 【ランウェイ】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【カッコよくウォーキングをしている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【スポットライトが当たった美女から美しさのオーラが光の粒となり周りへと広がっていく】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed,
【プロンプト】Gemini画像生成
Anime style illustration. A small, fragile 【イエベ春の美女】 in a vast 【菜の花畑】. The 【菜の花畑】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【両手を上げ片足立ちではしゃいでいる】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【光と水の粒がキラキラと輝いて舞っている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【イエベ春の美女】 in a vast 【モルディブのような南国リゾート】. The 【ビーチリゾート】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【麦わら帽子を両手で押さえ、浅瀬ではしゃいでいる。】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【快晴の昼間で、水飛沫が眩しく輝いている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ夏美女】 in a vast 【美術館】. The 【何千もの絵画が飾られた広い円形の美術館】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【絵画を見上げている横顔が見える】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【絵画から英語の文字や想いの光が飛び出ていて輝いている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ夏美女】 in a vast 【社交場】. The 【ゴージャスな社交場】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【イエベ秋のゴージャスなイケメンに社交ダンスを申し込まれている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【ときめきと希望が光の粒となって浮遊している】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【イエベ秋美女】 in a vast 【照明が落ちたコンサートホール】. The 【満席のコンサートホール】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【バイオリンを弾いている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【演奏する音色が見える光となって広がっていく】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【イエベ秋美女】 in a vast 【映画館】. The 【映画館】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【デート相手を目の前にときめいている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【ときめきの気持ちが形となって光の粒となり放出される】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ冬美女】 in a vast 【街のイルミネーション】. The 【並木道のイルミネーション】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【マフラーに片手を添えている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【街のネオンとイルミネーションの光がキラキラと眩しくハレーションを起こしている】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed, as if something is missing. Yohaku. Silence. An unfinished moment.
Anime style illustration. A small, fragile 【ブルベ冬クール美女】 in a vast 【ランウェイ】. The 【ランウェイ】 dominates the frame. The human presence is secondary and quiet. The character does not act. They hesitate. Their body is slightly turned away. Their hands remain close to their body, as if unsure whether to 【カッコよくウォーキングをしている】. Strong contrast, high brightness, high saturation, but emotionally restrained. Light exists, but is not decorative. 【スポットライトが当たった美女から美しさのオーラが光の粒となり周りへと広がっていく】 are sparse and accidental. The composition feels slightly off-balance, not perfectly framed,
■ なぜ「感情を描かせない」プロンプトにしたのか
多くの画像生成プロンプトは、
感情を表情・ポーズ・行動で描こうとする。
笑う。
走る。
抱きしめる。
でも今回、私がやりたかったのは逆だった。
行動しない
決断しない
感情が“出そうで出ない”瞬間
だから、あえてプロンプトにこう書いている。
The character does not act.
They hesitate.
これは「弱い指示」ではない。
感情を内側に閉じ込めるための制限。
感情を描かせないことで、
見る側が勝手に感情を読み取ってしまう余地――
つまり余白が生まれる。
■ 人物を小さくする理由（主役は人ではない）
このプロンプトでは、一貫してこう指定している。
A small, fragile human
The landscape dominates the frame.
The human presence is secondary and quiet.
これは「引きの構図が好きだから」ではない。
感情は、人よりも環境に宿る
という前提で設計している。
菜の花畑
南国の海
美術館
社交場
コンサートホール
人物が主役になると、
感情は説明的になる。
人物を脇役に落とすことで、
「この世界の中で、今この人は何を感じているのか」を
読む側に委ねる構造になる。
■ 光を“装飾”にしないための制限
キラキラは使っている。
でも、必ず条件をつけている。
Light exists, but is not decorative.
are sparse and accidental.
これはかなり重要な一文。
AIは放っておくと、
光＝エモさ
として全力で盛ってくる。
だから、
sparse（まばら）
accidental（偶然）
という言葉で、
意味を持たせすぎない光に縛っている。
光は感情を説明しない。
ただ、そこに“在ってしまった”だけ。
その曖昧さが、
絵を「完成させない」。
■ このプロンプトを使い回すためのテンプレ
最後に、今回の構造を
差し替え可能な形にまとめておく。
Anime style illustration.
A small, fragile 【人物】 in a vast 【背景】.
The 【背景】 dominates the frame.
The human presence is secondary and quiet.
The character does not act.
They hesitate.
Their body is slightly turned away.
Their hands remain close to their body,
as if unsure whether to 【未遂に終わる行動】.
Strong contrast, high brightness, high saturation,
but emotionally restrained.
Light exists, but is not decorative.
【最小限の光表現】 are sparse and accidental.
The composition feels slightly off-balance,
not perfectly framed,
as if something is missing.
Yohaku.
Silence.
An unfinished moment.
重要なのは、
足すことではなく、削ること。
何を描かせないか。
どこで止めるか。
それを決めるのが、
このプロンプトの本質。
