写真撮影の醍醐味とも言えるポートレート写真ですが、もっと手軽に撮影できれば良いのになぁと思ったあなた。そうなんです。PC一つでポートレート写真が作れるのです。
今回は、ポートレート写真っぽい画像を生成してみたいと思います。
ポートレートとは?
主に人物を被写体として撮る表現方法です。人物がメインであればポートレートと言えます。
また、ポートレートの特徴として背景をぼかすことが多いです。ポートレート写真の良し悪しは背景のロケーションとそのボケ感で決まると言って良いでしょう。オーソドックスな作例では葉っぱやお花を背景にすることが多いです。
ではさっそく画像生成していきましょう。
①遠近感を出す、背景をボケさせる:depth of field
「depth of field」を重くするとより遠近感が出て、背景がボケやすくなります。
(portrait:1.2), cute & girly \(idolmaster\), facial, (8k, RAW photo, best quality, masterpiece:1.2), ultra detailed, ultra high res, (realistic, photo realistic:1.2), high detail RAW color photo, professional photograph, depth of field, an extremely delicate and beautiful, extremely detailed, 8k wallpaper, moist skin, photograph, suffering, neo, film grain, depth of field 100mm, amazing, extremely detailed, beautiful detailed girl, ((leaf, flower)),
Negative prompt: (bad-hands-5), (worst quality:2), (low quality:2), (normal quality:2), lowers, normal quality, (monochrome:1.2), (grayscale:1.2), skin spots, acnes, skin blemishes, age spot, ugly face, glans, fat, missing fingers, extra fingers, extra arms, extra legs, watermark, text, error, blurry, jpeg artifacts, cropped, bad anatomy, 2 navel, muscle, nipple, hair ornaments, mole, long neck, bad proportions, multiple views,
②花や葉っぱを構図に入れる:leaf, flower
葉っぱが少ないときは「forest」と入れてみるのもおすすめです。
縦構図
③全身構図のポートレート:full body(洋服のプロンプトを入れると全身構図になりやすい)
今回は、「dress」「one-piece」を入れてみました。
cute & girly \(idolmaster\), facial, (8k, RAW photo, best quality, masterpiece:1.2), ultra detailed, ultra high res, (16yo:1.2), high detail RAW color photo, professional photograph, depth of field, an extremely delicate and beautiful, extremely detailed, 8k wallpaper, moist skin, photograph, suffering, neo, film grain, depth of field:1.4, amazing, extremely detailed, beautiful detailed girl, (leaf:1.3), (flower:1.2), beautiful girl, smile:0.8, dancing, dress, hair flower:1.2, one-piece, full body, outdoor, (forest:1.5), (looking at another:1.5),
Negative prompt: (bad-hands-5), (worst quality:2), (low quality:2), (normal quality:2), lowers, normal quality, (monochrome:1.2), (grayscale:1.2), skin spots, acnes, skin blemishes, age spot, ugly face, glans, fat, missing fingers, extra fingers, extra arms, extra legs, watermark, text, error, blurry, jpeg artifacts, cropped, bad anatomy, 2 navel, muscle, nipple, hair ornaments, mole, long neck, bad proportions, multiple views,
④制服美少女のポートレート:School girl
ローアングルは、「from below」。しゃがむは、「squatting」と入れます。
横構図のポートレート画像です。
(portrait:1.2), cute & girly \(idolmaster\), facial, (8k, RAW photo, best quality, masterpiece:1.2), ultra detailed, ultra high res, (realistic, photo realistic:1.2), high detail RAW color photo, professional photograph, depth of field, an extremely delicate and beautiful, extremely detailed, 8k wallpaper, moist skin, photograph, suffering, neo, film grain, depth of field 100mm, amazing, extremely detailed, beautiful detailed girl, (leaf:1.1), (flower:1.2), beautiful flower,
Negative prompt: (bad-hands-5), (worst quality:2), (low quality:2), (normal quality:2), lowers, normal quality, (monochrome:1.2), (grayscale:1.2), skin spots, acnes, skin blemishes, age spot, ugly face, glans, fat, missing fingers, extra fingers, extra arms, extra legs, watermark, text, error, blurry, jpeg artifacts, cropped, bad anatomy, 2 navel, muscle, nipple, hair ornaments, mole, long neck, bad proportions, multiple views,
Steps: 30, Sampler: DPM++ SDE Karras, CFG scale: 5, Seed: 1421970658
もっと質感を上げてみましょう。
(threesome:1.2), cute & girly \(idolmaster\), facial, (8k, RAW photo, best quality, masterpiece:1.2), ultra detailed, ultra high res, (16yo:1.2), high detail RAW color photo, professional photograph, depth of field, an extremely delicate and beautiful, extremely detailed, 8k wallpaper, moist skin, photograph, suffering, neo, film grain, depth of field:1.4, amazing, extremely detailed, beautiful detailed girl, (leaf:1.3), (flower:1.2), beautiful girl, smile:0.8, dancing, dress, hair flower:1.2, one-piece, full body, outdoor, (forest:1.5), (looking at another:1.5),
Negative prompt: (bad-hands-5), (worst quality:2), (low quality:2), (normal quality:2), lowers, normal quality, (monochrome:1.2), (grayscale:1.2), skin spots, acnes, skin blemishes, age spot, ugly face, glans, fat, missing fingers, extra fingers, extra arms, extra legs, watermark, text, error, blurry, jpeg artifacts, cropped, bad anatomy, 2 navel, muscle, nipple, hair ornaments, mole, long neck, bad proportions, multiple views,
Steps: 30, Sampler: DPM++ SDE Karras, CFG scale: 3, Seed: 3421970707,
blazer, miniskirt, thighhighs, medium hair, perfect ratio face, professional lighting, extremely fine, BREAK school girl, (full body:1.3), BREAK, high resolution, unity 8k wallpaper, (illustration:0.8), (beautiful detailed eyes:1.6), extremely detailed face, perfect lighting, extremely detailed CG, (perfect hands, perfect anatomy), forest, park, <lora:ao:0.7>
Negative prompt: (bad-hands-5), (worst quality, low quality, normal quality:2), lowers, normal quality, (monochrome:1.2), (grayscale:1.2), skin spots, acnes, skin blemishes, age spot, ugly face, glans, fat, missing fingers, extra fingers, extra arms, extra legs, watermark, text, error, blurry, jpeg artifacts, cropped, bad anatomy, 2 navel, muscle, nipple, hair ornaments, mole, long neck, bad proportions, multiple views,
Steps: 30, Sampler: DPM++ SDE Karras, CFG scale: 4, Seed: 3376774597
ポートレート画像の生成ってすごく奥が深くて面白いですね。
(threesome:1.2), cute & girly \(idolmaster\), facial, (8k, RAW photo, best quality, masterpiece:1.2), ultra detailed, ultra high res, (realistic, photo realistic:1.2), high detail RAW color photo, professional photograph, depth of field, an extremely delicate and beautiful, extremely detailed, 8k wallpaper, moist skin, photograph, long shot of a Bright Elk, Suffering, Neo, film grain, Samsung Galaxy, Depth of field 100mm, art by Gottfried Helnwein, smile,
Negative prompt: (bad-hands-5), (worst quality:2), (low quality:2), (normal quality:2), lowers, normal quality, (monochrome:1.2), (grayscale:1.2), skin spots, acnes, skin blemishes, age spot, ugly face, glans, fat, missing fingers, extra fingers, extra arms, extra legs, watermark, text, error, blurry, jpeg artifacts, cropped, bad anatomy, 2 navel, muscle, nipple, hair ornaments, mole, long neck, bad proportions, multiple views,
Steps: 30, Sampler: DPM++ SDE Karras, CFG scale: 7, Seed: 3421970783
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