316 lines
11 KiB
Python
316 lines
11 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Augmenta imagens e máscaras *por grupo*.
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Entrada (via config.json -> MODELO):
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MODELO/dataset/original/group/<grupo>/images
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MODELO/dataset/original/group/<grupo>/masks
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Saída:
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MODELO/dataset/augmented/group/<grupo>/images
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MODELO/dataset/augmented/group/<grupo>/masks
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Se "original/group" não existir, faz fallback para:
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MODELO/dataset/original/{images,masks}
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MODELO/dataset/augmented/{images,masks}
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Transf. geométricas (aplicam a img e máscara) e fotométricas (apenas imagem).
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Uso:
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python _3_augmentation_grouped.py --copies 5
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python _3_augmentation_grouped.py --copies 5 --groups chao,chao_erva,cana
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"""
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import os
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import json
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import cv2
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from PIL import Image
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import albumentations as A
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import argparse
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# ⚙️ Configurações
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with open("config_oak.json", "r", encoding="utf-8") as f:
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config = json.load(f)
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MODELO = config.get("camera", ".")
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USE_MASKS2 = config.get("dual_head", False)
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# Pastas base
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DATASET_BASE = os.path.join(MODELO, "dataset")
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ORIG_GROUP_ROOT = os.path.join(DATASET_BASE, "original", "group")
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AUG_GROUP_ROOT = os.path.join(DATASET_BASE, "augmented", "group")
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# Fallback (modo antigo, sem grupos)
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ORIG_OLD_IMG = os.path.join(DATASET_BASE, "original", "images")
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ORIG_OLD_MSK = os.path.join(DATASET_BASE, "original", "masks")
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ORIG_OLD_MSK2 = os.path.join(DATASET_BASE, "original", "masks2")
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AUG_OLD_IMG = os.path.join(DATASET_BASE, "augmented", "images")
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AUG_OLD_MSK = os.path.join(DATASET_BASE, "augmented", "masks")
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AUG_OLD_MSK2 = os.path.join(DATASET_BASE, "augmented", "masks2")
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# Extensões aceitas
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IMG_EXTS = (".jpg", ".jpeg", ".png")
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MSK_EXTS = (".png", ".jpg", ".jpeg") # manter prioridade PNG quando possível
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MSK2_EXTS = (".png", ".jpg", ".jpeg")
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def garantir_dir(p):
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os.makedirs(p, exist_ok=True)
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# Pipeline de augmentations
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train_tf = A.Compose([
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A.HorizontalFlip(p=0.5),
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# Geométricas (aplicam em imagem e máscara)
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A.ShiftScaleRotate(
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shift_limit=0.01,
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scale_limit=0.10,
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rotate_limit=5,
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border_mode=cv2.BORDER_REFLECT_101,
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interpolation=cv2.INTER_LINEAR,
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p=0.30
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),
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# Fotométricas (somente imagem)
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A.OneOf([
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A.RandomBrightnessContrast(0.2, 0.2, p=1.0),
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A.HueSaturationValue(hue_shift_limit=5, sat_shift_limit=20, val_shift_limit=15, p=1.0),
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A.RandomGamma(gamma_limit=(90, 110), p=1.0),
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], p=0.70),
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A.OneOf([
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A.MotionBlur(blur_limit=3, p=1.0),
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A.GaussianBlur(blur_limit=3, p=1.0),
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], p=0.20),
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A.OneOf([
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A.GaussNoise(var_limit=(5.0, 15.0), p=1.0),
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A.ImageCompression(quality_lower=50, quality_upper=85, p=1.0),
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], p=0.20),
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A.RandomShadow(p=0.10),
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A.RandomSunFlare(p=0.10),
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A.ChannelShuffle(p=0.05),
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A.CoarseDropout(max_holes=6, max_height=16, max_width=16, p=0.10),
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], additional_targets={
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'mask2': 'mask'
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})
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def load_rgb(path):
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# cv2 lê BGR → converte para RGB
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im = cv2.imread(path, cv2.IMREAD_COLOR)
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if im is None:
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raise FileNotFoundError(path)
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return cv2.cvtColor(im, cv2.COLOR_BGR2RGB)
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def save_rgb(path, arr_rgb):
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Image.fromarray(arr_rgb).save(path)
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def list_groups(root):
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"""Lista grupos válidos (que contêm subpastas images e masks)."""
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if not os.path.isdir(root):
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return []
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grupos = []
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for name in sorted(os.listdir(root)):
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gdir = os.path.join(root, name)
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if not os.path.isdir(gdir):
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continue
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if os.path.isdir(os.path.join(gdir, "images")) and os.path.isdir(os.path.join(gdir, "masks")):
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grupos.append(name)
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return grupos
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def map_masks_by_base(msk_dir):
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"""Mapeia máscaras por base (prioriza .png)."""
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by_base = {}
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if not os.path.isdir(msk_dir):
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return by_base
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for fname in os.listdir(msk_dir):
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f_lower = fname.lower()
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if not f_lower.endswith(MSK_EXTS):
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continue
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base, ext = os.path.splitext(fname)
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cand = os.path.join(msk_dir, fname)
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if base not in by_base:
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by_base[base] = cand
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else:
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# mantém .png se disponível
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cur_ext = os.path.splitext(by_base[base])[1].lower()
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if cur_ext != ".png" and ext.lower() == ".png":
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by_base[base] = cand
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return by_base
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def map_masks2_by_base(msk2_dir):
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"""Mapeia máscaras2 por base (prioriza .png)."""
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by_base = {}
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if not os.path.isdir(msk2_dir):
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return by_base
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for fname in os.listdir(msk2_dir):
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f_lower = fname.lower()
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if not f_lower.endswith(MSK2_EXTS):
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continue
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base, ext = os.path.splitext(fname)
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cand = os.path.join(msk2_dir, fname)
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if base not in by_base:
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by_base[base] = cand
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else:
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cur_ext = os.path.splitext(by_base[base])[1].lower()
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if cur_ext != ".png" and ext.lower() == ".png":
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by_base[base] = cand
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return by_base
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def ensure_aug_dirs(group_name=None, use_masks2=False):
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"""Cria diretórios de saída para o grupo ou modo antigo. Se use_masks2, cria masks2."""
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if group_name:
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img_out = os.path.join(AUG_GROUP_ROOT, group_name, "images")
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msk_out = os.path.join(AUG_GROUP_ROOT, group_name, "masks")
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msk2_out = os.path.join(AUG_GROUP_ROOT, group_name, "masks2") if use_masks2 else None
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else:
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img_out = AUG_OLD_IMG
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msk_out = AUG_OLD_MSK
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msk2_out = AUG_OLD_MSK2 if use_masks2 else None
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garantir_dir(img_out)
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garantir_dir(msk_out)
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if use_masks2 and msk2_out:
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garantir_dir(msk2_out)
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return img_out, msk_out, msk2_out
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def augment_pair(img_path, msk_path, img_out_dir, msk_out_dir, copies, msk2_path=None, msk2_out_dir=None):
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base_img, img_ext = os.path.splitext(os.path.basename(img_path))
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base_msk, msk_ext = os.path.splitext(os.path.basename(msk_path))
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msk2_ext = os.path.splitext(os.path.basename(msk2_path))[1] if msk2_path else None
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# padroniza pelo base da imagem
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base = base_img
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img = load_rgb(img_path)
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msk = load_rgb(msk_path)
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msk2 = load_rgb(msk2_path) if msk2_path else None
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gen = 0
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for i in range(copies):
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if msk2 is not None and msk2_out_dir:
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aug = train_tf(image=img, mask=msk, mask2=msk2)
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else:
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aug = train_tf(image=img, mask=msk)
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img_aug = aug["image"]
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msk_aug = aug["mask"]
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out_img = os.path.join(img_out_dir, f"{base}_aug_{i:02d}{img_ext}")
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out_msk = os.path.join(msk_out_dir, f"{base}_aug_{i:02d}{msk_ext}")
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save_rgb(out_img, img_aug)
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save_rgb(out_msk, msk_aug)
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if msk2 is not None and msk2_out_dir:
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msk2_aug = aug["mask2"]
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out_msk2 = os.path.join(msk2_out_dir, f"{base}_aug_{i:02d}{msk2_ext}")
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save_rgb(out_msk2, msk2_aug)
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gen += 1
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return gen
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def process_group(group_name, copies):
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"""Processa um grupo único (images/masks dentro de ORIG_GROUP_ROOT/<group_name>/)."""
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img_dir = os.path.join(ORIG_GROUP_ROOT, group_name, "images")
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msk_dir = os.path.join(ORIG_GROUP_ROOT, group_name, "masks")
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msk2_dir = os.path.join(ORIG_GROUP_ROOT, group_name, "masks2")
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if not (os.path.isdir(img_dir) and os.path.isdir(msk_dir)):
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print(f"[WARN] Grupo '{group_name}' inválido (sem images/masks). Pulando.")
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return 0
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imgs = [f for f in os.listdir(img_dir) if os.path.splitext(f.lower())[1] in IMG_EXTS]
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msk_map = map_masks_by_base(msk_dir)
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use_masks2 = USE_MASKS2 and os.path.isdir(msk2_dir)
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msk2_map = map_masks2_by_base(msk2_dir) if use_masks2 else {}
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img_out_dir, msk_out_dir, msk2_out_dir = ensure_aug_dirs(group_name, use_masks2=use_masks2)
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count = 0
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for img_file in sorted(imgs):
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base, _ = os.path.splitext(img_file)
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msk_file = msk_map.get(base)
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if not msk_file:
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print(f"[WARN] [{group_name}] Máscara não encontrada para {img_file}, pulando.")
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continue
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msk2_file = msk2_map.get(base) if use_masks2 else None
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if use_masks2 and not msk2_file:
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print(f"[WARN] [{group_name}] mask2 não encontrada para {img_file}, gerando só img+mask.")
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try:
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count += augment_pair(
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os.path.join(img_dir, img_file),
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msk_file,
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img_out_dir,
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msk_out_dir,
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copies=copies,
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msk2_path=msk2_file,
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msk2_out_dir=msk2_out_dir
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)
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except Exception as e:
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print(f"[ERRO] [{group_name}] {img_file}: {e}")
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print(f"[OK] Grupo '{group_name}' → {count} pares gerados.")
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return count
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def process_legacy(copies):
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"""Fallback: modo sem grupos (original/images e original/masks)."""
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if not (os.path.isdir(ORIG_OLD_IMG) and os.path.isdir(ORIG_OLD_MSK)):
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print("[WARN] Modo legacy não encontrado. Nada a fazer.")
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return 0
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imgs = [f for f in os.listdir(ORIG_OLD_IMG) if os.path.splitext(f.lower())[1] in IMG_EXTS]
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msk_map = map_masks_by_base(ORIG_OLD_MSK)
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use_masks2 = USE_MASKS2 and os.path.isdir(ORIG_OLD_MSK2)
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msk2_map = map_masks2_by_base(ORIG_OLD_MSK2) if use_masks2 else {}
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img_out_dir, msk_out_dir, msk2_out_dir = ensure_aug_dirs(group_name=None, use_masks2=use_masks2)
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count = 0
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for img_file in sorted(imgs):
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base, _ = os.path.splitext(img_file)
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msk_file = msk_map.get(base)
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if not msk_file:
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print(f"[WARN] (legacy) Máscara não encontrada para {img_file}, pulando.")
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continue
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msk2_file = msk2_map.get(base) if use_masks2 else None
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if use_masks2 and not msk2_file:
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print(f"[WARN] (legacy) mask2 não encontrada para {img_file}, gerando só img+mask.")
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try:
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count += augment_pair(
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os.path.join(ORIG_OLD_IMG, img_file),
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msk_file,
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img_out_dir,
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msk_out_dir,
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copies=copies,
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msk2_path=msk2_file,
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msk2_out_dir=msk2_out_dir
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)
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except Exception as e:
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print(f"[ERRO] (legacy) {img_file}: {e}")
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print(f"[OK] Legacy → {count} pares gerados.")
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return count
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def main(copies=5, groups_csv=None):
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total = 0
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if os.path.isdir(ORIG_GROUP_ROOT):
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grupos = list_groups(ORIG_GROUP_ROOT)
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if groups_csv:
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# filtra pelos grupos desejados
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want = {g.strip() for g in groups_csv.split(",") if g.strip()}
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grupos = [g for g in grupos if g in want]
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if not grupos:
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print("[WARN] Nenhum grupo válido encontrado após filtro.")
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if not grupos:
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print("[WARN] Nenhum grupo encontrado em original/group. Tentando modo legacy...")
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total += process_legacy(copies)
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else:
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print(f"Grupos encontrados: {', '.join(grupos)}")
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for g in grupos:
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total += process_group(g, copies)
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else:
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# sem estrutura de grupos
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total += process_legacy(copies)
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print(f"\nAugmentation completed! Total: {total} pares gerados.")
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if __name__ == "__main__":
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ap = argparse.ArgumentParser(description="Augmentação por grupos (images/masks)")
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ap.add_argument("--copies", type=int, default=5, help="Número de cópias augmentadas por imagem (default=5).")
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ap.add_argument("--groups", type=str, default=None, help="Lista de grupos separados por vírgula (ex: chao,erva_cana).")
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args = ap.parse_args()
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main(copies=args.copies, groups_csv=args.groups)
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