安裝postgresql數據庫python開發包：

apt install libpq-dev python3-dev pip install psycopg2

具體代碼如下：

from PIL import Image import psycopg2 as psconn = ps.connect(host="127.0.0.1", user="postgres", password="postgres", database="asoct")#connect postgresql if conn is not None:cur = conn.cursor()command = "create table cataract (name text NOT NULL, content bytea NOT NULL);"#create table cataractcur.execute(command)conn.commit()# commit the changescur.close()# close communication with the PostgreSQL database serverconn.close() import os #insert and store image with binary format conn = ps.connect(host="127.0.0.1", user="postgres", password="postgres", database="asoct")#connect postgresql if conn is not None:cur = conn.cursor()image_dir = '/data/fjsdata/ASOCT/Cataract/C_8bit_Crop_New' #the path of imagesfor fname in sorted(os.listdir(image_dir)):if fname.endswith(".jpg"):#open the image file with open(os.path.join(image_dir, fname),'rb') as reader:img_buffer = reader.read() command = "insert into cataract(name, content) values(%s, %s);"#create table cataractparams = (fname, psycopg2.Binary(img_buffer))cur.execute(command, params)conn.commit()# commit the changescur.close()# close communication with the PostgreSQL database serverconn.close() from io import StringIO,BytesIO #query and show image conn = ps.connect(host="127.0.0.1", user="postgres", password="postgres", database="asoct")#connect postgresql if conn is not None:cur = conn.cursor() command = "select * from cataract limit 1;"cur.execute(command) rcd = cur.fetchone()img_name = rcd[0]#get nameimg_data = rcd[1]#get contentprint (img_name)img = Image.open(BytesIO(img_data))#img.save(img_name)img.show()

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