[python] str、bytes、BytesIO、Imag

导入

import pytesseract,  base64

from ioimport BytesIO

from PILimport Image

str  转为Image

# str 转 bytes

byte_data = base64.b64decode(string)

# bytes 转 BytesIO

img_data = BytesIO(byte_data)

# BytesIO 转 Image

img = Image.open(img_data)

img= Image.open(img_data)

imgShow = img.show()

#### str = pytesseract.image_to_string(Image.open(img),  lang='eng')

str = pytesseract.image_to_string(img,  lang='eng')

print(str)

Image转为str

img = Image.open()

# 创建一个字节流管道

imgByteArr = BytesIO()

# 将图片数据存入字节流管道, format可以按照具体文件的格式填写

img.save(imgByteArr, format='png')

# 从字节流管道中获取二进制

image_bytes = imgByteArr.getvalue()

# bytes 转 str

string = base64.b64encode(image_bytes).decode('utf8')