main/mapping.py

import json
import os
import sys
import pickle
from PIL import Image
from tqdm import tqdm
from utils import parse_face_attributes, json_element_cnt

def mapping(img_folders:str, label_folder:str):
    new_data = []
    label_data = {}
    img_folders = [img_folders+"/"+folder for folder in os.listdir(img_folders) if os.path.isdir(os.path.join(img_folders, folder))]
    labels = [label for label in os.listdir(label_folder) if json_element_cnt(os.path.join(label_folder, label)) == 1]
    # for label in labels:
    for label in tqdm(labels, desc="mapping labels to images"):
        label_data[label] = parse_face_attributes(os.path.join(label_folder, label))

    print(len(label_data.keys()))
    print(list(label_data.keys())[:10])
    error = 0
    for label_file_name in tqdm(label_data.keys(), desc="mapping images to labels"):
        img_idx = label_file_name.split(".")[0]
        img_idx_str = f"img000{img_idx}.png"
        img_idx_int = int(img_idx)
        img_folder_idx = img_idx_int // 1000
        # print(img_folders[0])
        # print(img_folders[img_folder_idx])
        # print(f"loc: {os.path.join(img_folders[img_folder_idx], img_idx_str)}")
        # print(os.path.exists(os.path.join(img_folders[img_folder_idx], img_idx_str)))
        if os.path.exists(os.path.join(img_folders[img_folder_idx], img_idx_str)):
            new_data.append({
                # "img": os.path.join(img_folders[img_folder_idx], img_idx_str),
                "img": Image.open(os.path.join(img_folders[img_folder_idx], img_idx_str)),
                "label": label_data[label_file_name]})
        else:
            error += 1
    print(len(new_data))
    print(error)
    with open("ffhq_data.pkl", "wb") as f:
        pickle.dump(new_data, f)

if __name__ == "__main__":
    img_folder = "./temp_data"
    label_folder = "./temp_data/ffhq-features-dataset/json"
    mapping(img_folder, label_folder)