基于CRNN的文本识别

本关任务：加载图片，预处理并以TFRecords格式存储

"""
Write text features and labels into tensorflow records
"""
import random
import json

import tensorflow as tf

import cv2
import numpy as np
import os
import sys


# 图片裁剪高度
_IMAGE_HEIGHT = 32
# 图片数据集路径
_IMAGE_DIR = './data/images/'
# image_list路径
_IMAGE_LIST_FILE = './data/image_list.txt'
#