125 lines
5.6 KiB
Python
125 lines
5.6 KiB
Python
"""Bangun ulang run/raw/<state>.png dari strip asli generator dengan faktor skala per pose.
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Satu kali resample (BOX) per pose → semua frame sama tajam. Ini SATU-SATUNYA tempat skala dikoreksi.
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Pakai:
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python rebuild_raw.py <src_strip> <out_strip> --poses N [--target 0.5] [--rel 1,0.95,1,0.987]
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src_strip strip asli generator (raw-original/<state>.png), latar chroma flat
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out_strip run/raw/<state>.png
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--target ukuran 1 px final dalam "pixel palsu" (0.5 = 1 px final per 2 pixel palsu)
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--rel koreksi per pose (hasil register_frames.py); satu angka = berlaku untuk semua pose
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--key warna chroma (default ff00ff)
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Butuh sprite_gen (untuk mengukur pitch). Setelah ini: sprite-gen extract --run-dir run --states <state>
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"""
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import argparse
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import numpy as np
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from PIL import Image
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from sprite_gen.frames.extract import estimate_pixel_grid_runlen
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def find_poses(fg: np.ndarray, n: int, min_gap: int = 12, min_width: int = 20):
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cols = fg.sum(0) > 2
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runs, x, w = [], 0, len(cols)
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while x < w:
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if cols[x]:
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s = x
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while x < w and cols[x]:
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x += 1
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runs.append([s, x])
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else:
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x += 1
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merged = [runs[0]]
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for r in runs[1:]:
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if r[0] - merged[-1][1] < min_gap: # potongan kecil (ujung pedang, jubah) digabung
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merged[-1][1] = r[1]
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else:
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merged.append(r)
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merged = [r for r in merged if r[1] - r[0] > min_width]
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counts = fg.sum(0)
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while len(merged) < n:
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# pose bersentuhan (ujung pedang menyentuh jubah tetangga): potong pose terlebar di kolom
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# dengan piksel paling sedikit (bagian tengah 70 %) — biasanya titik sentuh yang tipis
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i = max(range(len(merged)), key=lambda j: merged[j][1] - merged[j][0])
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s, e = merged[i]
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m = int((e - s) * 0.15)
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cut = s + m + int(np.argmin(counts[s + m:e - m]))
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print(f"pose menempel: potong di kolom {cut} (piksel {int(counts[cut])})")
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merged[i:i + 1] = [[s, cut], [cut, e]]
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if len(merged) != n:
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raise SystemExit(f"ditemukan {len(merged)} pose, harusnya {n}: {merged} — cek strip / generate ulang")
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return merged
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def main():
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ap = argparse.ArgumentParser()
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ap.add_argument("src")
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ap.add_argument("out")
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ap.add_argument("--poses", type=int, required=True)
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ap.add_argument("--target", type=float, default=0.5)
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ap.add_argument("--rel", default="1")
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ap.add_argument("--key", default="ff00ff")
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ap.add_argument("--pitch", type=float, default=None, help="pakai pitch ini (pitch pose idle) untuk semua baris; pitch tiap baris kadang salah ukur")
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args = ap.parse_args()
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key = np.array([int(args.key[i:i + 2], 16) for i in (0, 2, 4)])
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im = Image.open(args.src).convert("RGB")
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px, py = estimate_pixel_grid_runlen(im.convert("RGBA"))
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if args.pitch: px = py = args.pitch
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base = args.target / ((px + py) / 2)
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rel = [float(v) for v in args.rel.split(",")]
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rel = rel * args.poses if len(rel) == 1 else rel
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assert len(rel) == args.poses, "--rel harus 1 angka atau sebanyak --poses"
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if len(set(rel)) == 1:
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# satu faktor untuk semua pose → perkecil strip utuh; tidak perlu memisahkan pose
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# (juga aman bila pose di gambar asli saling bersentuhan)
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f = base * rel[0]
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out = im.resize((round(im.width * f), round(im.height * f)), Image.Resampling.BOX)
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out.save(args.out)
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print(f"strip utuh: faktor {f:.4f} (pitch {px:.2f}x{py:.2f}, rel {rel[0]})")
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print("tersimpan:", args.out, out.size)
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return
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# rel mayoritas = skala strip utuh (tata letak & pose yang bersentuhan tetap utuh);
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# hanya pose dengan rel berbeda yang dipotong dari gambar asli, di-resample sekali, lalu ditempel ulang
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common = max(set(rel), key=rel.count)
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fc = base * common
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out = im.resize((round(im.width * fc), round(im.height * fc)), Image.Resampling.BOX)
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print(f"strip utuh: faktor {fc:.4f} (pitch {px:.2f}x{py:.2f}, rel {common})")
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a = np.array(im).astype(int)
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fg = np.sqrt(((a - key) ** 2).sum(-1)) > 110
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runs = find_poses(fg, args.poses)
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pad = 6
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for i, (x0, x1) in enumerate(runs):
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if rel[i] == common:
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continue
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rows = np.nonzero(fg[:, x0:x1].any(1))[0]
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y0, y1 = rows.min(), rows.max() + 1
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# pad hanya ke sisi yang kosong — jangan ikut mengambil piksel pose tetangga yang menempel
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px0 = x0 - pad if i == 0 or runs[i - 1][1] < x0 else x0
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px1 = x1 + pad if i == len(runs) - 1 or runs[i + 1][0] > x1 else x1
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box = (max(0, px0), max(0, y0 - pad), min(im.width, px1), min(im.height, y1 + pad))
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crop = im.crop(box)
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cmask = Image.fromarray((fg[box[1]:box[3], box[0]:box[2]] * 255).astype(np.uint8))
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# hapus pose lama (versi skala strip) dari kanvas
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sbox = tuple(round(v * fc) for v in box)
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old = cmask.resize((sbox[2] - sbox[0], sbox[3] - sbox[1]), Image.Resampling.BOX).point(lambda v: 255 if v > 0 else 0)
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out.paste(Image.new("RGB", old.size, tuple(int(v) for v in key)), sbox[:2], old)
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# tempel versi baru, kaki (tengah-bawah) tetap di tempat yang sama
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f = base * rel[i]
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size = (max(1, round(crop.width * f)), max(1, round(crop.height * f)))
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small = crop.resize(size, Image.Resampling.BOX)
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smask = cmask.resize(size, Image.Resampling.BOX).point(lambda v: 255 if v > 0 else 0)
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cx, bottom = (box[0] + box[2]) / 2 * fc, box[3] * fc
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out.paste(small, (round(cx - small.width / 2), round(bottom - small.height)), smask)
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print(f"pose {i}: faktor {f:.4f} (rel {rel[i]}) ditempel ulang")
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out.save(args.out)
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print("tersimpan:", args.out, out.size)
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if __name__ == "__main__":
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main()
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