はじめに
Imagen 4 の特徴:初心者に優しい
シンプル プロンプトでリアル画像を生成するためのテクニック:初心者でもすぐ試せるコツ
ステップ1:基本のプロンプト構造を覚える
ステップ2: ツールの秘められた機能を使う
実験用のシンプル プロンプト:コピーして試してみて!
生成する画像の概要 1
生成したい人物像について:
生成したい画像の物語:
生成した画像:
An elderly couple walks arm-in-arm on a wet, leaf-strewn cobblestone path on a foggy day, with a grand staircase and illuminated streetlights fading into the mist in the background.
In the foreground, an elderly couple is seen from behind, walking away from the viewer. The woman on the left wears a light grey overcoat and has her arm linked with the man on the right, who is dressed in a dark, possibly black, long coat and carries a patterned bag in his left hand. They are walking on a cobblestone path that appears wet and reflective from recent rain, with scattered autumn leaves visible on its surface. To the left of the couple, there's an ornate, black streetlamp with a bright, glowing light, and further left, several cars are parked alongside the road, partially obscured by the fog.
In the mid-ground and background, a majestic, wide stone staircase with dark railings ascends steeply into the distance, disappearing into the dense fog. Several more antique-style streetlights line the staircase and the path next to it, casting a warm glow that pierces through the mist. To the right of the staircase, a line of tall trees with bare branches or sparse autumn leaves stands beside the path, their forms softened by the fog. A dark, ornate fence runs along the bottom right edge of the frame, bordering the path. The overall atmosphere is serene, melancholic, and romantic, conveying a sense of quiet intimacy amidst the foggy, autumnal setting. The limited visibility due to the fog adds to a mystical or dreamlike quality.
生成する画像の概要 2
生成したい人物像について:
生成したい画像の物語:
生成した画像:
A young woman in a flowing white dress sits by a high window in a decaying arched corridor, bathed in sunlight.
A young woman with brightly colored hair gathered at the back. The room within the ruins is dilapidated. Bright rays stream through the high arched window, where paint peels from the frame and surrounding walls, tracing striking diagonal streaks of light through the dusty air and illuminating a portion of the dark, textured floor.
She wears a sleeveless white gown with a V-neck, creating a vivid contrast with her surroundings. Her expression is calm and direct, meeting the viewer's gaze. Bare feet are faintly visible at the bottom of the frame, hinting at vulnerability.
The setting is a long corridor or colonnade, with multiple arches stretching into the distance on the left. The walls show significant deterioration, paint peeling off in large, scaly patches, revealing the rough texture of the underlying surface. Traces of damage are also visible on the ceiling. The tall window she sits by features an arched top and visible metal framing. The glass is broken. Strong sunlight streams in through this main window and the arched window at the corridor's end, casting sharp geometric shadows from the window frames onto the dusty floor.
The overall atmosphere presents a stark contrast between beauty and decay, innocence and abandonment. The monochrome palette emphasizes the interplay of texture, light, and shadow, creating a mood of melancholy and mystery. This lends the image a timeless, somewhat eerie quality. No other people or animals are depicted in the scene.
Style: Black and white photography, elegant, cinematic
Lighting: Harsh natural light streaming through the windows, casting strong shadows and highlights, chiaroscuro
Composition: Medium full shot, centered subject, leading lines from the row of windows and the corridor
Details: Textured wall with peeling paint, dust on the floor, intricate window frames, reflections in the windows, atmospheric and melancholic mood, sense of abandonment
Quality: High detail, sharp focus, professional photography, timeless look

Google Imagen 4 ultra
A solitary figure of a woman, rendered as a dark silhouette, leaning gently against the frame of a tall, narrow window with worn white shutters, her long, flowing dress pooling slightly on the floor, in a dark, otherwise unseen room.
In a dimly lit setting, a solitary figure stands gracefully by an open door, casting a long shadow against the darkened space. The subject, draped in a flowing gown, embodies a sense of contemplation and vulnerability. Soft, ethereal light filters in from the doorway, illuminating her silhouette and highlighting the delicate texture of the fabric. The stark contrast between the light and shadow creates a dramatic, moody atmosphere reminiscent of classic film noir photography, with influences from Baroque art in the use of chiaroscuro effects. The composition emphasizes negative space around the figure, drawing the eye to her poise and the interplay of light. This image utilizes a monochromatic palette, enhancing emotional depth and invoking feelings of nostalgia and introspection. The overall ambiance is serene yet profound, inviting the viewer to reflect on the moment captured. The photograph showcases a fine art style, executed in high contrast black and white, which adds a timeless quality to the scene.
Style: Black and White Photography, Cinematic, Moody
Lighting: Dramatic backlighting from the window, creating a stark silhouette, with subtle light spilling onto the floor and parts of the dress, forming a soft glow around her hair and shoulders.
Composition: Full shot, portrait orientation, strong vertical lines, the woman positioned off-center towards the right, the window acting as a powerful light source and a frame for the subject.
Details: High contrast, atmospheric, grainy texture, highlighting the delicate curls of her hair and the elegant drape of her gown.
Quality: High Detail, Masterpiece
生成する画像の概要 3
生成したい人物像について:
生成したい画像の物語:
Fashion photography for high fashion magazines.A classic Italian Mediterranean room with a ceiling three times the usual height, next to a high, slender window reaching to the ceiling, a high-fashion, straight-type, stylish and urban-looking Paris Collection model from Vogue fashion magazine in a white linen maxi-length dress,She is standing, her hands resting on the window sill, looking out with a depressed expression. It is a dark, abandoned room with a dusty floor.
Photography equipment: Leica M11 + Summilux 50mm F1.4, photorealistic cinematic sharp focus with natural light, realistic.
Model's expression: ultra highres, ultra highres, straight nose, straight nose, full makeup.
Model's gaze: straight nose.
Photo style: black and white, fine art photography
lighting: dramatic high contrast lighting from one vertical light source creates strong shadows and highlights, Natural Window Light, Chiaroscuro, soft light illuminates the floor.
composition: long distance shot, focus on woman and light using rule of thirds, left side 80% negative space on the left side.
Detail: elegant white dress, delicate textures on walls and floor, mysterious light surrounding the woman, melancholic and mellow atmosphere.
Quality: high detail, professional photography, masterpiece, 4k,8k, ultra highres.
lighting: dramatic high contrast lighting from one vertical light source creates strong shadows and highlights, soft light illuminates the floor.
正確な生成画が得られるJSONプロンプトに挑戦してみよう
Imagen 4は2000文字以上でも余裕!JSONにも完全対応
JSON とは
JSON の特徴
JSON の基本構造
JSON の基本的な記述例
JSONで生成する画像の概要 1
生成したい人物像について:
生成したい画像の物語:

{
"meta": {
"name": "Classic Parisian Café Photo",
"description": "This black-and-white photo captures the 1950s vibe of ‘Café des Fleurs’, a café on a Parisian street corner. The Eiffel Tower is in the background, with people enjoying coffee at the terrace. A woman holds a kitten, and a waiter serves with a tray. The scene reflects the era's charm."
},
"mood": {
"realismLevel": "Photorealistic",
"emotionalTone": "Nostalgic, Charming, Elegant"
},
"color": {
"hue": "Monochrome Grayscale",
"palette": ["#FFFAFA", "#808080", "#1E1E1E"],
"contrast": "balanced—bright light and muted shadows",
"brightness": "medium ambient lighting",
"saturation": "subdued saturation"
},
"camera": {
"zoom": "moderate—balanced subject and background",
"angle": "neutral front view",
"perspective": "eye-level view",
"depthOfField": "medium—subject sharp, background soft"
},
"texture": {
"grain": "light, film-like texture",
"brushStyle": "none",
"detailLevel": "high with soft touches",
"lineQuality": "soft natural edges",
"surfaceStyle": "photorealistic with vintage grain"
},
"lighting": {
"direction": "diffused overhead daylight",
"intensity": "high, clear daylight",
"volumetric": false,
"shadowStyle": "soft but defined edges",
"temperature": 5500,
"highlightStyle": "soft, diffused highlights"
},
"rendering": {
"format": "JPEG",
"medium": "black and white film photography",
"animated": false,
"outputSize": "3:2"
},
"atmosphere": {
"fog": "none",
"grain": "gentle vintage-style grain overlay",
"vignette": "natural subtle vignette",
"ambientMotion": "static and calm scene"
},
"composition": {
"depth": 3
}
}
{
"meta": {
"name": "Classic Parisian Cafe Photography",
"description": "A vintage black and white film photography style characterized by a full grayscale range, natural ambient lighting, and a soft film grain. The aesthetic evokes mid-20th century candid street portraiture."
},
"mood": {
"realismLevel": "photorealistic",
"emotionalTone": "nostalgic, charming, elegant"
},
"color": {
"hue": "monochromatic grayscale",
"palette": ["#FFFFFF", "#808080", "#1E1E1E"],
"contrast": "balanced—bright light and muted shadows",
"brightness": "medium ambient lighting",
"saturation": "desaturated"
},
"camera": {
"zoom": "medium—balanced between subject and background",
"angle": "straight-on neutral",
"perspective": "eye-level perspective",
"depthOfField": "moderate—sharp subject with soft depth"
},
"texture": {
"grain": "light, film-like texture",
"brushStyle": "none",
"detailLevel": "high with soft finishing touches",
"lineQuality": "soft natural edges",
"surfaceStyle": "photorealistic with vintage grain"
},
"lighting": {
"direction": "diffused overhead daylight",
"intensity": "high, clear daylight",
"volumetric": false,
"shadowStyle": "soft edged but defined",
"temperature": 5500,
"highlightStyle": "soft diffused highlights"
},
"rendering": {
"format": "JPEG",
"medium": "black and white film photography",
"animated": false,
"outputSize": "9:16"
},
"atmosphere": {
"fog": "none",
"grain": "gentle vintage grain overlay",
"vignette": "subtle natural vignette",
"ambientMotion": "static calm scene"
},
"composition": {
"depth": 3,
"focus": "subject in environmental context",
"framing": "open and cinematic",
"motionFlow": "dynamic—motion frozen with clarity",
"perspective": "deep three-dimensional",
"negativeSpaceRatio": 0.2
}
}
{
"meta": {
"name": "Detailed Classic Parisian Cafe Photography",
"description": "A vintage black and white film photography style evoking mid-20th century Paris. The scene features a café at a street corner, with the Eiffel Tower in the background. People relax and engage in conversation at the terrace, with a soft film grain adding to the nostalgic atmosphere. The image captures the charm and elegance of the era through candid street portraiture."
},
"mood": {
"realismLevel": "photorealistic",
"emotionalTone": "nostalgic, charming, elegant, serene",
"storyContext": "A calm afternoon in Paris, with people enjoying a leisurely break, sipping coffee and chatting in the warm sunlight."
},
"color": {
"hue": "monochromatic grayscale",
"palette": ["#FFFFFF", "#D3D3D3", "#808080", "#1E1E1E"],
"contrast": "balanced—bright light and muted shadows",
"brightness": "medium ambient lighting",
"saturation": "desaturated",
"highlights": "subtle soft highlights reflecting off the cups and table edges"
},
"camera": {
"zoom": "medium—balanced between subject and background",
"angle": "straight-on neutral, slightly upward angle to emphasize the Eiffel Tower in the distance",
"perspective": "eye-level perspective",
"depthOfField": "moderate—sharp focus on subjects at the table, soft focus in the background",
"focus": "sharp on the closest person or object, with a soft blur on background elements like the Eiffel Tower"
},
"texture": {
"grain": "light, film-like texture",
"brushStyle": "none",
"detailLevel": "high with soft finishing touches to smooth edges",
"lineQuality": "soft natural edges",
"surfaceStyle": "photorealistic with vintage grain",
"details": "Soft details around facial expressions and textures of fabric and café tables"
},
"lighting": {
"direction": "diffused overhead daylight, with light coming from the left to create soft shadows",
"intensity": "high, clear daylight",
"volumetric": false,
"shadowStyle": "soft-edged but defined",
"temperature": 5500,
"highlightStyle": "soft diffused highlights on the table and people"
},
"rendering": {
"format": "JPEG",
"medium": "black and white film photography",
"animated": false,
"outputSize": "3:2, suitable for print",
"resolution": "high resolution for fine details and texture reproduction"
},
"atmosphere": {
"fog": "none",
"grain": "gentle vintage-style grain overlay",
"vignette": "subtle natural vignette around the edges to focus attention on the center of the image",
"ambientMotion": "static calm scene, with no visible movement except perhaps a gentle breeze on tablecloths or hair"
},
"composition": {
"depth": 3,
"focus": "subject in environmental context, with people interacting within the bustling yet serene Parisian setting",
"framing": "open and cinematic, allowing the viewer to take in both foreground and the Eiffel Tower in the background",
"motionFlow": "dynamic—motion frozen with clarity, with slight natural movement suggested by hair or fabric blowing",
"perspective": "deep three-dimensional, creating a sense of space between the foreground (café) and the background (Eiffel Tower)",
"negativeSpaceRatio": 0.2,
"subjectPlacement": "people positioned around the table, creating balance in the frame"
},
"objects": [
{
"name": "Waiter",
"description": "A man in a classic white jacket and black trousers, holding a tray with a coffee cup, approaching a table.",
"action": "Serving coffee to a seated customer, smiling gently.",
"position": "Near the right of the frame, with focus on his hand delivering the coffee."
},
{
"name": "Woman with Kitten",
"description": "A young woman in a stylish coat and scarf, holding a small kitten in her lap.",
"action": "Looking down affectionately at the kitten, with a soft smile.",
"position": "Seated at a café table near the center of the image."
},
{
"name": "Coffee Cups and Plates",
"description": "Several white ceramic coffee cups and small plates on the table, with subtle reflections of light on their surfaces.",
"action": "Held by the patrons or resting on the table, adding to the sense of the social atmosphere.",
"position": "Scattered on the table, arranged for visual balance."
}
],
"environment": {
"location": "Café terrace on a Parisian street corner",
"landmarks": ["Eiffel Tower", "Old Parisian buildings with ornate balconies in the background"],
"streetScene": "Vintage cars parked along the street, pedestrians walking by in 1950s fashion.",
"weather": "Overcast, with a hint of sunlight filtering through the clouds."
}
}
Gallery









投稿者プロフィール

-
神子島 彰(Akira Kagoshima) 1948年11月東京都中野区生まれ、血液型B型。
2026年9月1日、継父の小畑姓から実母方の神子島姓に改姓。
1. 画家Vincent van Gogh研究者として:
約40年間、画家Vincent van Goghについて、次々と発見される一次情報を精査し、私自身の視点から、Goghの本質について研究を続けている。現在、膨大な一次資料の最終チェックを進めています。
2026年秋頃より3ヵ年計画で順次公開、ペーパーメディアでの各国版出版も予定しています。
2 AIアーティストとして:
AI技術を活用して、独自のデジタルアートを創作するアーティストです。テクノロジーとクリエイティビティの交差点で、新しい表現の可能性を探求しています。『aigenart』は、私の作品やアイデアを世界に発信する場であり、AIがもたらす美しさや楽しさを皆さんと共有したいと考えています。
3. 戦争反対論者として:
20代の頃から日本国憲法第9条(戦争の放棄、戦力の不保持、および国の交戦権の否認)改憲には、強い反対の意思を堅持している。
4. mail**igenart.jp (スパム対策のため、** を @a に入れ替えてください)
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