生成 ocr key 字符集 alphabet

import pickle as pkl

#----------- 生成 ocr key 字符集 alphabet
alphabet_set = set()
# 数据集label
infofiles_label = ['/home/jlb/下载/rec_data_lesson_demo/train.txt', '/home/jlb/下载/rec_data_lesson_demo/val.txt']

# ppocr中文key
infofiles = ['/home/jlb/Project/OCR/ocr/recognize/ppocr_keys_v1.txt']

for infofile in infofiles:
    f = open(infofile)
    content = f.readlines()
    f.close()
    for line in content:
        line = line.replace("\n", "")
        alphabet_set.add(line)


for infofile in infofiles_label:
    f = open(infofile)
    content = f.readlines()
    f.close()
    for line in content:
        if len(line.strip())>0:
            if len(line.strip().split('\t'))!=2:
                print(line)
            else:
                fname,label = line.strip().split('\t')
                for ch in label:
                    alphabet_set.add(ch)

alphabet_list = sorted(list(alphabet_set))
pkl.dump(alphabet_list, open('alphabet.pkl','wb'))

读取字符集 alphabet

#----------- 读取字符集 alphabet
alphabet_list = pkl.load(open('/home/jlb/Project/OCR/ocr/recognize/alphabet.pkl','rb'))
alphabet = [ord(ch) for ch in alphabet_list]
alphabet_v2 = alphabet
print("----------------------- alphabet_v2:", len(alphabet_list), alphabet_list)