Stable Diffusion文生图时,为了减少回头功,增加出图的效率,建议按照下面的流程进行:
先设定内容类型、选择模型,
再确定图片内容、撰写提示词,
然后设置出图参数、设定参数大小,
最后再调整控制图片、修改姿势/人物/构图。
SD 提示词与参数
SD 中有独立的负面提示词输入框,我们可以在负面提示词输入框中设置我们不希望画面中出现的元素。
SD 中可以非常精确的去设置和控制生图参数,比如说采样器、采样步数、提示词引导系数等,来调整图片的质量和效果。
SD 中可以通过模型、lora还有插件来控制人物和画面构图。
SD 中可以通过小括号 () 提高提示词权重,但是每一层小括号只能提高0.1倍的权重,除了叠加使用小括号,我们还可以通过 (blue sky:1.4) 的方式,来直接设定权重系数。但是要注意,权重并不是越高效果越好,一般特别强调一个元素,也不要使用1.4以上的权重。
关于采样步数
随着采样步数提高,画面的细节和精细程度都会提高。但是大多数采样器在采样步数高到一定程度之后,画面的变化开始不明显。另外步数越高,生成一张图需要花费的时间就更长,所以并不是步数越高越好的。
其他经验
有些全部模型都比较通用的质量词,比如 masterpiece、best quality、worst quality(负面)、bad quality(负面),加上这些,总体就不会太差。
真人模型比较通用的质量词:photorealistic、ultra detailed、raw photo,可以让真人图片的生成效果变得更真实,更像是相机拍摄出来的。
本次绘画
提示词:
highly detailed RAW Instagram, (high detailed skin:1.2), shadows, 8k high definition, insanely detailed, intricate, masterpiece, highest quality, Bees, lying on peach blossoms, extreme close, |
负面提示词:
((nsfw)), (panties:1.2), (bra:1.2), (pierced belly button:1.2), (body piercing:1.2), (3d:1.6), (3d render:1.6), (3dcg:1.6), (cropped head), (deformed, deformed body, deformed glasses, deformed legs:1.3), bad nipples, ugly nipples, draft, drawing, duplicate, error, extra arms, extra breasts, extra calf, extra digit, extra ears, extra eyes, extra feet, extra heads, extra knee, extra legs, extra limbs, extra shoes, extra thighs, failure, fake, fake face, fewer digits, floating limbs, grainy, gross, gross proportions, short arm, head out of frame, illustration, image corruption, irregular, jpeg artifacts, long body, long face, long neck, long teeth, long feet, lopsided, low, low quality, low resolution, low res, malformed, messy drawing, misshapen, monochrome, more than 1 left hand, more than 1 right hand, more than 2 legs, more than 2 nipples, more than 2 thighs, more than two shoes, mosaic, multiple, multiple breasts, mutated, mutation, mutilated, no color, normal quality, (out of focus:1.2), (out of frame:1.2), oversaturated, surreal, twisted, , unappealing, uncoordinated body, uneven, unnatural, unnatural body, unprofessional, weird colors, worst, worst quality, (penis, dick, penetration:1.3), (fake skin, porcelain skin:1.3), (bad feet, wrong feet:1.3), (bad hands, wrong hands:1.3), (deformed iris, deformed pupils, semi-realistic, CGI, 3d, render, sketch, cartoon, drawing, blur, anime:1.6), (:blurry background:1.6), |
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