ComfyUI Image to Image: C脿i 膼岷穞 Denoise & L峄梚 Th瓢峄漬g G岷穚

H瓢峄沶g d岷玭 img2img trong ComfyUI 鈥?hi峄僽 gi谩 tr峄?denoise, x芒y d峄眓g workflow 膽煤ng c谩ch v脿 s峄璦 c谩c l峄梚 th瓢峄漬g g岷穚 nh瓢 m岷 chi ti岷縯岷h g峄慶.

Image to Image l脿 g矛?

Image to Image (img2img) nh岷璶 m峄檛岷h c贸 s岷祅 l脿m 膽岷 v脿o v脿 t岷 ra 岷h m峄沬 d峄盿 tr锚n n贸. Thay v矛 b岷痶膽岷 t峄?nhi峄卽 thu岷 t煤y nh瓢 text-to-image, m么 h矛nh b岷痶膽岷 t峄?phi锚n b岷 nhi峄卽 c峄 岷h tham chi岷縰鈥?gi峄?l岷 c岷 tr煤c trong khi 谩p d峄g phong c谩ch ho岷穋 chi ti岷縯 m峄沬.

C谩c tr瓢峄漬g h峄 s峄?d峄g ph峄?bi岷縩:

Chuy峄僴膽峄昳 phong c谩ch 鈥?bi岷縩岷h ch峄 th脿nh anime, tranh s啤n d岷 ho岷穋 ph谩c th岷
Kh么i ph峄 岷h 鈥?l脿m s岷h 岷h c农 ho岷穋 b峄?h瓢 h峄弉g
T么 m脿u 鈥?th锚m m脿u v脿o 岷h 膽en tr岷痭g
L岷穚 l岷 媒 t瓢峄焠g 鈥?tinh ch峄塶h b岷 ph谩c th岷 th么 th脿nh 岷h ho脿n thi峄噉

Kh谩c bi峄噒 so v峄沬 Text to Image

Workflow g岷 nh瓢 gi峄憂g h峄噒 text-to-image, v峄沬 hai thay 膽峄昳 ch铆nh:

岷h 膽岷 v脿o thay th岷?empty latent 鈥?Thay v矛 node Empty Latent Image, b岷 d霉ng node Load Image r峄搃 n峄慽 v峄沬 node VAE Encode 膽峄?chuy峄僴岷h tham chi岷縰 sang latent space
Denoise ph岷 nh峄?h啤n 1.0 鈥?膼芒y l脿膽i峄僲 kh谩c bi峄噒 quan tr峄峮g

Th么ng s峄?Denoise

Gi谩 tr峄?denoise trong KSampler ki峄僲 so谩t m峄ヽ膽峄?m么 h矛nh gi峄?l岷 岷h g峄慶:

Gi谩 tr峄?Denoise	Hi峄噓峄﹏g
0.0鈥?.3	Thay 膽峄昳 nh岷?鈥?chuy峄僴 m脿u, 膽i峄乽 ch峄塶h phong c谩ch nh峄? 岷h g峄慶 v岷玭 nh岷璶 ra r玫 r脿ng
0.3鈥?.6	Bi岷縩膽峄昳 trung b矛nh 鈥?thay 膽峄昳 phong c谩ch r玫 r峄噒 nh瓢ng v岷玭 gi峄?b峄?c峄
0.6鈥?.8	Bi岷縩膽峄昳 l峄沶鈥?chi ti岷縯 m峄沬 xu岷 hi峄噉, c岷 tr煤c g峄慶膽瓢峄 tu芒n theo l峄弉g l岷籵
0.8鈥?.0	G岷 nh瓢 t岷 l岷 ho脿n to脿n 鈥?ti岷縫 c岷璶 h脿nh vi text-to-image
1.0	Th峄眂 t岷?gi峄憂g text-to-image 鈥?岷h tham chi岷縰 g岷 nh瓢 kh么ng 岷h h瓢峄焠g

峄?denoise 1.0, 岷h tham chi岷縰 h岷 nh瓢 kh么ng 膽贸ng g贸p g矛 v脿o k岷縯 qu岷? 膼峄?img2img c贸媒 ngh末a, h茫y gi峄?gi谩 tr峄?d瓢峄沬 0.9.

膼岷穞 denoise 峄?gi谩 tr峄?t峄?0.3 膽岷縩 0.7 l脿m 膽i峄僲 kh峄焛膽岷
Vi岷縯 prompt m么 t岷?phong c谩ch 膽岷 ra mong mu峄憂
M么 h矛nh s岷?d霉ng 岷h tham chi岷縰 l脿m 膽i峄僲 b岷痶膽岷 thay v矛 nhi峄卽 thu岷 t煤y

Danh s谩ch k岷縯 n峄慽

膼岷 b岷 c谩c k岷縯 n峄慽 sau 膽茫膽瓢峄 thi岷縯 l岷璸 tr瓢峄沜 khi t岷 岷h:

Load Image 鈫?VAE Encode (膽岷 v脿o samples)
Load Checkpoint 鈫?VAE Encode (膽岷 v脿o vae) v脿 VAE Decode (膽岷 v脿o vae)
VAE Encode 鈫?KSampler (膽岷 v脿o latent_image)
CLIP Text Encode (positive) 鈫?KSampler
CLIP Text Encode (negative) 鈫?KSampler
KSampler 鈫?VAE Decode 鈫?Save Image

C岷 h矛nh kh峄焛膽岷 t峄憈: steps 20, cfg 7.0, denoise 0.5.

B瓢峄沜 4: T岷 岷h v脿 l岷穚 l岷

Nh岷 Queue (ho岷穋 Ctrl+Enter) 膽峄?t岷 岷h. N岷縰 k岷縯 qu岷?

Qu谩 gi峄憂g 岷h g峄慶 鈥?t膬ng denoise
Qu谩 kh谩c 岷h g峄慶 鈥?gi岷 denoise
Sai phong c谩ch 鈥?膽i峄乽 ch峄塶h prompt

M岷筼 th峄眂 t岷?

B岷痶膽岷 v峄沬 denoise 0.5 v脿膽i峄乽 ch峄塶h t峄?膽贸鈥?膽芒y l脿 m峄ヽ c芒n b岷眓g t峄憈
Prompt v岷玭 quan tr峄峮g 鈥?n贸 h瓢峄沶g d岷玭 nh峄痭g g矛 m么 h矛nh th锚m v脿o trong qu谩 tr矛nh kh峄?nhi峄卽
Negative prompt c农ng h峄痷铆ch 鈥?d霉ng ch煤ng 膽峄?tr谩nh artifact gi峄憂g nh瓢 trong text-to-image
膼峄?ph芒n gi岷 quan tr峄峮g 鈥?v峄沬 SD1.5, resize 岷h 膽岷 v脿o v峄?512脳512 膽峄?c贸 k岷縯 qu岷?t峄憈 nh岷
Th峄?nghi峄噈 c贸 h峄?th峄憂g 鈥?th峄?c谩c gi谩 tr峄?denoise t峄?0.2 膽岷縩 0.8 v峄沬 b瓢峄沜 nh岷 0.1 膽峄?t矛m 膽i峄僲 t峄慽瓢u

L峄梚 th瓢峄漬g g岷穚 v脿 c谩ch kh岷痗 ph峄

K岷縯 qu岷?kh么ng gi峄憂g 岷h tham chi岷縰

Denoise qu谩 cao 鈥?gi岷 xu峄憂g 0.3鈥?.5 膽峄?gi峄?l岷 nhi峄乽 h啤n t峄?岷h g峄慶
K岷縯 n峄慽 VAE sai 鈥?膽岷 b岷 VAE c峄 Load Checkpoint k岷縯 n峄慽 v峄沬 c岷?VAE Encode v脿 VAE Decode
膼峄?ph芒n gi岷 kh么ng kh峄沺 鈥?resize 岷h 膽岷 v脿o cho kh峄沺 v峄沬膽峄?ph芒n gi岷 g峄慶 c峄 m么 h矛nh (512脳512 cho SD1.5)

K岷縯 qu岷?g岷 nh瓢 gi峄憂g h峄噒岷h 膽岷 v脿o

Denoise qu谩 th岷 鈥?t膬ng l锚n 0.5鈥?.7 膽峄?c贸 nhi峄乽 bi岷縩膽峄昳 h啤n
Prompt y岷縰 鈥?th锚m nhi峄乽 t峄?kh贸a m么 t岷?h啤n cho s峄?thay 膽峄昳 phong c谩ch mong mu峄憂

M脿u s岷痗 ho岷穋膽峄?t瓢啤ng ph岷 b峄?sai

膼i峄乽 n脿y th瓢峄漬g x岷 ra khi VAE t峄?checkpoint kh么ng ph霉 h峄. Th峄?d霉ng VAE b锚n ngo脿i (th锚m node "Load VAE") nh瓢 vae-ft-mse-840000-ema-pruned

岷h tham chi岷縰 b峄?m茅o

Ki峄僲 tra k铆ch th瓢峄沜岷h 膽岷 v脿o chia h岷縯 cho 8 (y锚u c岷 c峄 latent space trong ComfyUI)
Tr谩nh 岷h qu谩 nh峄?(<256px) 鈥?ch煤ng kh么ng c贸膽峄?chi ti岷縯膽峄?m么 h矛nh x峄?l媒

B瓢峄沜 ti岷縫 theo

Text to Image 鈥?N岷縰 b岷 ch瓢a t矛m hi峄僽, h茫y h峄峜 c谩c ki岷縩 th峄ヽ c啤 b岷
LoRA Guide 鈥?K岷縯 h峄 img2img v峄沬 LoRA 膽峄?ki峄僲 so谩t phong c谩ch ch铆nh x谩c
Upscale Guide 鈥?N芒ng cao k岷縯 qu岷?img2img b岷眓g AI upscaling