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| import os
import json
from PIL import Image, ImageDraw
import glob
def create_yolo_txt(json_data, image_width, image_height, txt_file_path):
"""Convert JSON data to YOLO format and save to TXT file."""
with open(txt_file_path, 'w') as f:
for item_key in ['item1', 'item2']:
if item_key in json_data:
bbox = json_data[item_key]['bounding_box']
cat_id = json_data[item_key]['category_id']
x_center = (bbox[0] + bbox[2]) / (2 * image_width)
y_center = (bbox[1] + bbox[3]) / (2 * image_height)
width = (bbox[2] - bbox[0]) / image_width
height = (bbox[3] - bbox[1]) / image_height
line = f"{cat_id} {x_center:.6f} {y_center:.6f} {width:.6f} {height:.6f}\n"
f.write(line)
def draw_bounding_boxes(json_data, image, output_image_path):
"""Draw bounding boxes on the image and save."""
draw = ImageDraw.Draw(image)
for item_key in ['item1', 'item2']:
if item_key in json_data:
bbox = json_data[item_key]['bounding_box']
draw.rectangle(bbox, outline='red')
image.save(output_image_path)
def process_images_and_jsons(image_folder, json_folder, txt_output_folder, result_image_folder):
"""Process all images and JSON files."""
if not os.path.exists(txt_output_folder):
os.makedirs(txt_output_folder)
if not os.path.exists(result_image_folder):
os.makedirs(result_image_folder)
for json_file in glob.glob(os.path.join(json_folder, '*.json')):
base_name = os.path.splitext(os.path.basename(json_file))[0]
image_file = os.path.join(image_folder, f'{base_name}.jpg')
if os.path.isfile(image_file):
with open(json_file, 'r') as f:
data = json.load(f)
image = Image.open(image_file)
image_width, image_height = image.size
txt_file_path = os.path.join(txt_output_folder, f'{base_name}.txt')
create_yolo_txt(data, image_width, image_height, txt_file_path)
output_image_path = os.path.join(result_image_folder, f'{base_name}_result.jpg')
draw_bounding_boxes(data, image, output_image_path)
image_folder = 'train\\train\\image'
json_folder = 'train\\train\\annos'
txt_output_folder = 'train\\train\\lables'
result_image_folder = 'train\\train\\result'
process_images_and_jsons(image_folder, json_folder, txt_output_folder, result_image_folder)
|
