rectangle (, outline = ( 255, 0, 0 ), width = 3 ) # draw. Save in BytesIO""" # read image from file #image = Image.open('lenna.png') # OR: create empty image image = Image. seek ( 0 ) # move to beginning of file (BytesIO) to read it return obj def generate_image (): """Load file to Pillow OR generate empty file in Pillow. savefig ( obj, format = 'png' ) # save in file (BytesIO) obj. BytesIO () # file in memory to save image without using disk plt. plot ( x, y ) # convert to file-like object obj = io. cla () # to clear it because it may keep it between sessions y = x = list ( range ( 10 )) plt. Save in BytesIO""" # create random plot plt. route ( '/' ) def index (): return """Examples""" + """- send image""" + """- send image to download""" + """- img base64""" + """- form1 (image without changes)""" + """- form2 (image with changes)""" def generate_image (): """Generate plot. from flask import Flask, send_file, request #render_template, import io import random import base64 import matplotlib.pyplot as plt from PIL import Image, ImageDraw import urllib.request app = Flask ( _name_ ). In similar way you can work with other files: music, PDF, excel, csv, etc. as string Base64 (directly in HTML or use in JavaScript with object Canvas) as normal file (so browser will ask where to save it) as image file (so you can use standard ) Here example with Flask which generates image in memory and sends to client using different methods.Īnd edit it with pillow and send to client getvalue () # get data from file (BytesIO) soc.
0 kommentar(er)
