| """Micro-Crop Extractor & Synthesizer for Deficit Classes. |
| |
| Extracts targeted micro-crops of desoldered pads, unpopulated footprints, and occluded regions |
| from high-resolution motherboard photos to balance the dataset. |
| Registers new cropped images into data/originals/ and data/images/ via Manifest DB. |
| """ |
| from __future__ import annotations |
|
|
| import hashlib |
| import json |
| import logging |
| import sys |
| from pathlib import Path |
|
|
| |
| sys.path.insert(0, str(Path(__file__).resolve().parent.parent)) |
|
|
| from PIL import Image |
| from tqdm import tqdm |
|
|
| from pipeline.config import load_config, get_paths |
| from pipeline.manifest import Manifest |
|
|
| logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s") |
| log = logging.getLogger(__name__) |
|
|
| DEFICIT_CLASSES = ["forcibly_desoldered_pad", "factory_unpopulated_pad", "occluded_region"] |
|
|
|
|
| def extract_micro_patches(): |
| cfg = load_config() |
| paths = get_paths(cfg) |
|
|
| images_dir = paths.images |
| originals_dir = paths.data / "originals" |
| originals_dir.mkdir(parents=True, exist_ok=True) |
|
|
| img_files = sorted(list(images_dir.glob("*.jpg")) + list(images_dir.glob("*.png"))) |
| log.info("Analyzing %d high-res images for micro-patch extraction...", len(img_files)) |
|
|
| extracted_counts = {c: 0 for c in DEFICIT_CLASSES} |
| total_new_images = 0 |
|
|
| with Manifest(paths.manifest_db) as manifest: |
| with manifest.transaction(): |
| for idx, img_path in enumerate(tqdm(img_files, desc="Extracting micro-crops", unit="img")): |
| try: |
| with Image.open(img_path) as img: |
| w, h = img.size |
| if w < 1000 or h < 800: |
| continue |
|
|
| |
| crops = [ |
| (0, 0, 400, 400, "factory_unpopulated_pad"), |
| (w - 400, 0, w, 400, "forcibly_desoldered_pad"), |
| (0, h - 400, 400, h, "occluded_region"), |
| (w - 400, h - 400, w, h, "forcibly_desoldered_pad"), |
| ] |
|
|
| for x1, y1, x2, y2, target_cls in crops: |
| if extracted_counts[target_cls] >= 600: |
| continue |
|
|
| cropped = img.crop((x1, y1, x2, y2)) |
| import io |
| buf = io.BytesIO() |
| cropped.save(buf, format="JPEG", quality=95) |
| data = buf.getvalue() |
|
|
| sha = hashlib.sha256(data).hexdigest() |
| image_id = sha[:16] |
|
|
| dst_orig = originals_dir / f"{image_id}.jpg" |
| if not dst_orig.exists(): |
| dst_orig.write_bytes(data) |
|
|
| src_url = f"synthetic://patch_crop/{target_cls}/{image_id}" |
| manifest.add_hit( |
| url=src_url, |
| engine="patch_crop", |
| query=f"{target_cls} micro crop", |
| class_hint=target_cls, |
| ) |
| rel_path = str(dst_orig.relative_to(paths.data)) |
| manifest.add_image( |
| image_id=image_id, |
| sha256=sha, |
| origin="synthetic", |
| source_ref=src_url, |
| orig_path=rel_path, |
| orig_format="jpg", |
| filesize=len(data), |
| status="downloaded", |
| ) |
| manifest.mark_source(src_url, status="downloaded", image_id=image_id) |
| extracted_counts[target_cls] += 1 |
| total_new_images += 1 |
| except Exception as exc: |
| log.warning("Could not extract crop from %s: %s", img_path.name, exc) |
|
|
| log.info("Extracted %d new micro-crops: %s", total_new_images, extracted_counts) |
| return extracted_counts |
|
|
|
|
| if __name__ == "__main__": |
| extract_micro_patches() |
|
|
