今天看看圖像的放大效果。

(SFW:2),

HDR,UHD,8K,best quality,masterpiece,Highly detailed,Studio lighting,ultra-fine painting,sharp focus,physically-based rendering,extreme detail description,Professional,Vivid Colors,Bokeh,(EOS R8,50mm,F1.2,8K,RAW photo:1.2),(8k, RAW photo, masterpiece),High detail RAW color photo,a professional photo,highest quality,(best shadow:1.2),(best illustration:1.6),ultra high resolution,highly detailed CG unified 8K wallpapers,physics-based rendering,cinematic lighting,photo,realistic,realism,high contrast,8k HD high definition detailed realistic,best quality,nikon,d850 film,stock photograph,kodak portra 400 camera f1.6 lens,trending on art station,cinestill 800,radiosity,physically-based rendering,high detail,sharp focus,aesthetic,8k uhd,DSLR,intricate details,soft lighting,high quality,

1girl,pale skin,model,glamor,medium breasts,aqua? eyes,long eye lashes,black hair,long hair,wavy hair,look? at? viewer,bare_shoulders,smile,perfet face,perfect round eyes,perfect button bose,perfect leg,Golden Section,

Negative prompt: (NSFW:2),EasyNegative,paintings,sketches,(crop head:2),(worst quality:2),(low quality:2),(normal quality:2),lowres,((monochrome)),((grayscale)),(skin spots),acnes,skin blemishes,age spot,glans,extra fingers,fewer fingers,strange fingers,bad hand,signature,watermark,username,blurry,bad feet,bad leg,duplicate,extra limb,ugly,disgusting,poorly drawn hands,missing limb,floating limbs,disconnected limbs,malformed hands,blurry,mutated hands and fingers,paintings,sketches,(worst quality:2),(low quality:2),(normal quality:2),lowres,((monochrome)),((grayscale)),skin spots,acnes,skin blemishes,age spot,glans,(extra fingers:2),(fewer fingers:2),(strange fingers:2),bad hand,bad nails,signature,watermark,username,blurry,bad feet,bad hand,bad leg,fat,ugly,

Steps: 20, Sampler: DPM++ SDE Karras, CFG scale: 5.5, Seed: 200100, Face restoration: CodeFormer, Size: 512x512, Model hash: ce4d987a0e, Model: DucHaitenAIart-v4.5.3

我們對一張圖進行四種不同方式的放大。

512*512原圖

第一步是通過“infinite image browser”插件打開，然后選擇“打開上下文菜單”，選擇“發送到圖生圖”或“發送到附加功能”。這個過程一般比較快，大概10秒到15秒能完成全部的圖片信息發送到響應功能。如果出現停止響應的情況，可以考慮重啟UI，最快可以在5秒內完成。

將原始圖像發送到圖生圖或附加功能

需要注意的是，發送過來時模型需要根據提示內容重新手動選擇

方法一：SD Scale

設置

這是采用ESRGAN算法放大4倍后的效果

這是Lanczos算法放大四倍后的效果

這是R-ESRGAN 4X+ 算法放大四倍后的效果

這是R-ESRGAN 4++Anime6B 算法放大四倍后的效果

可以發現，R-ESRGAN 4+算法在這類真實照片質感人像圖放大中效果較好。

方法二：Ultimate SD Scale

使用這種放大方式據說會更清晰，但是從效果來看好像并不是特別明顯，但是耗費的時間比上面的簡單SD Scale慢很多

放大設置

這是Lanczos算法放大四倍后的效果

這是采用ESRGAN算法放大4倍后的效果

這是采用R-ESRGAN 4X+算法放大4倍后的效果

這是R-ESRGAN 4++Anime6B 算法放大四倍后的效果

未完，待續……