""" Count images and summarize resolutions for Innodisk PCB dataset. Usage: python count_pcb_images.py /path/to/Innodisk_PCB_datasets """ import sys from pathlib import Path from collections import defaultdict from PIL import Image IMAGE_EXTS = {'.jpg', '.jpeg', '.png', '.bmp', '.tif', '.tiff'} def scan_dataset(root: Path): splits = defaultdict(list) # split_name -> list[Path] for p in root.glob('*'): if not p.is_dir(): continue name = p.name.lower() if name.startswith('train'): split = 'train' elif name.startswith('test'): split = 'test' elif name.startswith('val'): split = 'val' else: # unknown folder, skip continue for img in p.rglob('*'): if img.suffix.lower() in IMAGE_EXTS: splits[split].append(img) return splits def summarize(splits): print("\n===== Image Counts =====") for split, files in splits.items(): print(f"{split.capitalize():5s}: {len(files):,} images") print("\n===== Resolution Stats =====") for split, files in splits.items(): res_counter = defaultdict(int) for img_path in files: try: with Image.open(img_path) as im: res_counter[im.size] += 1 except Exception: continue print(f"\n[{split.capitalize()}]") for (w, h), cnt in sorted(res_counter.items(), key=lambda x: (-x[1], x[0])): print(f"{w}×{h}: {cnt:,}") if __name__ == "__main__": if len(sys.argv) != 2: print("Usage: python count_pcb_images.py /path/to/Innodisk_PCB_datasets") sys.exit(1) root = Path(sys.argv[1]) if not root.exists(): print("Path does not exist:", root) sys.exit(1) splits = scan_dataset(root) summarize(splits)