InkSpire Korean โ€” ํ•œ๊ธ€ ์†๊ธ€์”จ ์Šคํƒ€์ผ ์ƒ์„ฑ LoRA

InkSpire (Wang et al., ICLR 2026) ๋ฅผ ํ•œ๊ธ€๋กœ ์žฌํ˜„ํ•œ LoRA. FLUX.3-Image-Klein-Base + LoRA r32 (71.2M), 13k step. ์Šคํƒ€์ผ ์†๊ธ€์”จ ํ•œ ์ค„(+ ๊ทธ ์ „์‚ฌ)์„ ๋ณด๊ณ  ๊ฐ™์€ ํ•„์ฒด๋กœ ์ƒˆ ๋ฌธ์žฅ์„ ์“ด๋‹ค.

์ž…๋ ฅ ๊ทœ์•ฝ

์บ”๋ฒ„์Šค X(์œ„ = ref ์†๊ธ€์”จ, ์•„๋ž˜ = ๋นˆ ์นธ) ยท ์ฝ˜ํ…์ธ  ์ด๋ฏธ์ง€ Xc(NanumGothic ์œผ๋กœ ref ์ „์‚ฌ์™€ ๋ชฉํ‘œ ๋ฌธ๊ตฌ๋ฅผ ๊ธ€์ž ์ƒ์ž์— ๊ทธ๋ฆฐ ๊ฒƒ) ยท ๋งˆ์Šคํฌ. Xc ์˜ ref ์ค„(์ „์‚ฌ๋ฅผ ํ‘œ์ค€ํฐํŠธ๋กœ ๊ทธ๋ฆฐ ๊ธ€์ž ๋Œ€์‘ํ‘œ)๋กœ ref ํ•„์ฒด๋ฅผ ๋ฒ ๋ผ๋ฏ€๋กœ ํ•„์ฒด๋ฅผ ๋”ฐ๋ผ ํ•˜๋ ค๋ฉด ref ์ „์‚ฌ(style text)๊ฐ€ ํ•„์š”ํ•˜๋‹ค. ์ „์‚ฌ ์—†์ด๋„ ์ƒ์„ฑ์€ ๋˜๊ณ  ๊ธ€์ž๋Š” ์˜คํžˆ๋ ค ์ •ํ™•ํ•˜์ง€๋งŒ(์‹ค์†๊ธ€์”จ CER 0.168 โ†’ 0.033, cfg 2.0) ํ•„์ฒด๊ฐ€ ๊ฑฐ์˜ ์‚ฌ๋ผ์ง„๋‹ค(HWD 1.46 โ†’ 2.05). ๋ชฉํ‘œ ์ค„ ํญ์€ ref ์˜ "์†๊ธ€์”จ ํญ / ํ‘œ์ค€ํฐํŠธ ํญ" ๋น„์œจ๋กœ ๋งž์ถ˜๋‹ค(ref_width, ๊ธฐ๋ณธ).

์„ฑ๋Šฅ (ref ์ „์‚ฌ๋ฅผ ์ค„ ๋•Œ, PP-OCRv6 ํŒ๋… CER)

InkSpire ๋Š” ๋‚ด์šฉ CFG(cfg=2.0, uncond="gen", ๊ถŒ์žฅ) ์™€ ๋”(cfg=1.0, ๊ธฐ๋ณธ) ๋‘ ์ค„๋กœ ์ ๋Š”๋‹ค. Eruku ๋Š” ๊ถŒ์žฅ cfg 1.5.

ํ‰๊ฐ€ InkSpire cfg 2.0 InkSpire cfg 1.0 Eruku Korean
ํ•œ๊ธ€ ํฐํŠธ held-out 16์ข… n=300 โ€” CERโ†“ / HWDโ†“ 0.0045 / 1.02 0.023 / 0.93 0.010 / 1.12
์‹ค์†๊ธ€์”จ ๋ฌธ์žฅ ๊ต์ฐจ ์ƒ์„ฑ n=20 โ€” CERโ†“ / HWDโ†“ 0.071 / 1.60 0.246 / 1.41 0.014 / 1.51
์‹ค์†๊ธ€์”จ ์„œ์‹ ์นธ n=286 โ€” CERโ†“ / HWDโ†“ 0.180 / 1.37 0.417 / 1.20 0.711 (๋ฐฑ์ง€ 7) / 1.83
IAM lines 2,925 โ€” HWDโ†“ / FIDโ†“ โ€” 1.68 / 18.58 1.62 / 20.00
  • ํฐํŠธ ์กฐ๊ฑด์—์„  cfg 2.0 ์ด ์ •ํ™•๋„ยทํ•„์ฒด ๋ชจ๋‘ Eruku ๋ฅผ ์•ž์„ ๋‹ค. ์‹ค์ œ ์‚ฌ๋žŒ ์†๊ธ€์”จ ๋ฌธ์žฅ์€ ์ •ํ™•๋„๊ฐ€ Eruku ์— ๋’ค์ง„๋‹ค โ€” ํฐํŠธ๋กœ๋งŒ ํ•™์Šตํ•ด ๋ถ„ํฌ ๋ฐ– ๊ธ€์ž ๋ชจ์–‘์„ ๊ทธ๋Œ€๋กœ ๋ฒ ๋‚€๋‹ค.
  • CFG ๋Š” ์ •ํ™•๋„ โ†” ํ•„์ฒด(HWD) ์ ˆ์ถฉ์ด๋‹ค. ์ง€์ €๋ถ„ํ•œ ref(์„œ์‹ ์นธยทํ‘œ ์„  ์ž”์žฌ)์—์„  InkSpire ๊ฐ€ ๋ฐฑ์ง€ยทํญ์ฃผ๊ฐ€ ๊ฑฐ์˜ ์—†๋‹ค.
  • ํ•œ๊ณ„ ์ „์ฒด์™€ ์‚ฌ์šฉ ํŒ: GitHub README ใ€Œ๋จผ์ € ์ฝ์„ ๊ฒƒใ€. ์ธก์ • ๊ทผ๊ฑฐ: docs/EXPERIMENTS.md ยง9ยทยง10.

ํ•œ๊ธ€ ํฐํŠธ โ€” ์—ด = ref | GT | InkSpire cfg 1 | InkSpire cfg 2 | Eruku IAM

์‚ฌ์šฉ๋ฒ•

์ถ”๋ก  ์ฝ”๋“œ๋Š” GitHub repo ์— ์žˆ๋‹ค(๋ฒ ์ด์Šค ๊ฐ€์ค‘์น˜๋Š” black-forest-labs/flux-3-image-klein-base ์•ฝ๊ด€ ์ˆ˜๋ฝ ํ›„ ์ž๋™ ๋‹ค์šด๋กœ๋“œ).

import numpy as np, torch
from huggingface_hub import snapshot_download
from PIL import Image
from infer.inkspire import InkSpireGen          # GitHub repo ๋ฃจํŠธ์—์„œ

lora = snapshot_download("HERIUN/inkspire_korean")        # pytorch_lora_weights.safetensors + klein_empty_prompt.pt
# klein_empty_prompt.pt ๋Š” model_zoo/ ์— ๋‘”๋‹ค(๋นˆ ํ”„๋กฌํ”„ํŠธ ํ…์ŠคํŠธ ์ž„๋ฒ ๋”ฉ ์บ์‹œ โ€” ํ…์ŠคํŠธ ์ธ์ฝ”๋”๋ฅผ ์•ˆ ์˜ฌ๋ฆฐ๋‹ค)
# ํ‘œ์ค€ํฐํŠธ: ๋‚˜๋ˆ”๊ณ ๋”•(SIL OFL 1.1, https://hangeul.naver.com/font) NanumGothic-Regular.ttf ๋ฅผ
#   assets/fonts/label/ ์— ๋‘”๋‹ค โ€” std_font ๊ธฐ๋ณธ ๊ฒฝ๋กœ์ด๊ณ , ํ•™์Šต ๋•Œ Xc ๋ฅผ ๊ทธ๋ฆฐ ํฐํŠธ์™€ ๊ฐ™์€ ํŒŒ์ผ์ด์–ด์•ผ ํ•œ๋‹ค
g = InkSpireGen(lora, device="cuda", cfg=2.0, uncond="gen",   # ๊ถŒ์žฅ. cfg=1.0 = CFG ๋”(ํ•„์ฒด ์ตœ๋Œ€, ์˜คํƒ€โ†‘)
                std_font="assets/fonts/label/NanumGothic-Regular.ttf")
ref = np.asarray(Image.open("style_line.png").convert("L"))   # ์†๊ธ€์”จ ํ•œ ์ค„(์Šค์บ” ํ…Œ๋‘๋ฆฌยท์—ฌ๋ฐฑ์€ ๋ฏธ๋ฆฌ ์ž˜๋ผ ๋‘”๋‹ค)
out = g.gen_lines(ref, "์Šคํƒ€์ผ ์ด๋ฏธ์ง€์˜ ์ „์‚ฌ", ["์ƒ์„ฑํ•  ๋ฌธ์žฅ"], seed=0)[0]   # u8 ์ค„ ์ด๋ฏธ์ง€
  • ์ „์‚ฌ๋Š” ๊ธ€์ž ๊ทธ๋Œ€๋กœ ์ •ํ™•ํžˆ โ€” Xc ๋Œ€์‘ํ‘œ์˜ ์›์ฒœ์ด๋‹ค. ๋น„์šฐ๋ฉด("") ๊ธ€์ž๋Š” ์ •ํ™•ํ•˜์ง€๋งŒ ํ•„์ฒด๊ฐ€ ์‚ฌ๋ผ์ง„๋‹ค.
  • ํ‹€๋ฆฐ ๊ธ€์ž๊ฐ€ ๋ณด์ด๋ฉด seed ๋งŒ ๋ฐ”๊ฟ” ๋‹ค์‹œ โ€” ์˜ค๋ฅ˜๊ฐ€ ์‹œ๋“œ๋งˆ๋‹ค ๋‹ค๋ฅธ ๊ธ€์ž์—์„œ ๋‚œ๋‹ค.
  • ํ๋ฆฐ ์—ฐํ•„ ref ๋Š” ์ถœ๋ ฅ๋„ ํ๋ฆฌ๋‹ค(์ž‰ํฌ ๋†๋„๋ฅผ ๋ฒ ๋‚€๋‹ค). ์ง„ํ•˜๊ฒŒ ์›ํ•˜๋ฉด ref ๋Œ€๋น„๋ฅผ ์˜ฌ๋ ค ๋„ฃ๋Š”๋‹ค.

๋ผ์ด์„ ์Šค

FLUX Kommunity License (๋ฒ ์ด์Šค ๋ชจ๋ธ๊ณผ ๋™์ผ, ๋น„์ƒ์—… ์šฉ๋„) โ€” NOTICE ์ฐธ๊ณ . ํ•™์Šต ๋ฐ์ดํ„ฐ๋Š” ๊ณต๊ฐœ ํ•œ๊ธ€ ํฐํŠธ ๋ Œ๋”์ด๋ฉฐ, ๋น„๊ต ํ‰๊ฐ€์— ์“ด ์‹ค์†๊ธ€์”จ ๋ฐ์ดํ„ฐ๋Š” ํฌํ•จํ•˜์ง€ ์•Š์•˜๋‹ค.

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