[AI繪畫(huà)筆記](méi)stable diffusion中CFG Scale對(duì)畫(huà)面色彩濃淡的影響
實(shí)驗(yàn)結(jié)論:
已知step值影響畫(huà)面的完成度,step越高,細(xì)節(jié)渲染的越好。CFG Scale值越大,tag權(quán)重和先后順序的差異表現(xiàn)得越明顯。
經(jīng)測(cè)試,在tag里含有色彩描述時(shí),CFG Scale對(duì)畫(huà)面色彩濃淡的影響如下:
1.CFG Scale值越高,色彩越鮮艷;CFG Scale值越低,顏色超暗淡。
2.過(guò)高的cfg scale搭配過(guò)低的step會(huì)導(dǎo)致畫(huà)面顏色飽和度過(guò)高。同時(shí),過(guò)低的step值會(huì)導(dǎo)致畫(huà)面變形或者黑圖花圖。過(guò)高的step則需要足夠大的畫(huà)布像素才能體現(xiàn)效果。
模型:anything-v4.5
正向tag
colorful painting, ((chinese colorful ink)), (((Chinese color ink painting style))), (((masterpiece))), (((best quality))),((Ultra-detailed, very precise detailed)), (((a charming Chinese girl,1girl,solo,delicate beautiful face))), (Floating),(illustration),(Amazing),(Absurd),((sharp focus)), ((extremely detailed)), ((high saturation)), (surrounded by color ink splashes),((extremely detailed body)),((colorful))
負(fù)向tag
nsfw,lowres,bad anatomy,bad hands,text,error,missing fingers,extra digit,fewer digits,cropped,worst quality,low quality,normal quality,jpeg artifacts,signature,watermark,username,blurry,bad feet,
采樣器sampling method
DDIM
采樣步數(shù)sampling steps
31
寬度Width 512
高度Height 768
種子數(shù)34255
提示詞引導(dǎo)系數(shù) CFG Scale,分別采用7 14.5 30 3個(gè)值的結(jié)果


