60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
import json
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import sys
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from PIL import Image, ImageDraw
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# Creates "validation" images with rectangles for the bounding box information that
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# Claude creates when determining where to add text annotations in PDFs.
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# This version works with IMAGE coordinates (from .scan.json files).
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def create_validation_image(page_number, fields_json_path, input_path, output_path):
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"""
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Create a validation image with bounding boxes overlaid.
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Args:
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page_number: Page number (1-indexed)
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fields_json_path: Path to .scan.json file (IMAGE coordinates)
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input_path: Path to input PNG image
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output_path: Path to output validation image
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"""
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# Input file should be in the .scan.json format with IMAGE coordinates
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with open(fields_json_path, 'r') as f:
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fields = json.load(f)
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img = Image.open(input_path)
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draw = ImageDraw.Draw(img)
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num_boxes = 0
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for field in fields:
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if field['page'] == page_number:
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# Coordinates are already in image space - use them directly!
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entry_box_img = field['rect']
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label_box_img = field.get('label_rect', [0, 0, 0, 0])
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# Draw red rectangle over entry bounding box
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draw.rectangle(entry_box_img, outline='red', width=2)
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num_boxes += 1
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if label_box_img != [0, 0, 0, 0]:
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draw.rectangle(label_box_img, outline='blue', width=2)
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num_boxes += 1
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img.save(output_path)
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print(f"Created validation image at {output_path} with {num_boxes} bounding boxes")
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if __name__ == "__main__":
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if len(sys.argv) != 5:
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print("Usage: create_validation_image.py [page number] [scan.json file] [input image path] [output image path]")
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print()
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print("Example:")
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print(" python create_validation_image.py 1 form.chatfield/form.scan.json form.chatfield/page_1.png form.chatfield/page_1_validation.png")
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sys.exit(1)
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page_number = int(sys.argv[1])
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fields_json_path = sys.argv[2]
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input_image_path = sys.argv[3]
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output_image_path = sys.argv[4]
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create_validation_image(page_number, fields_json_path, input_image_path, output_image_path)
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