Python uses PIL to zoom the network picture and save the method

This example describes how Python uses PIL to scale a network picture and save it. Share to everyone for your reference. The implementation method is as follows:

' Tk_image_view_url_io_resize.pydisplay an image from a URL using Tkinter, PIL and data_streamalso resize the web image To fit a certain size display widgetretaining it aspect Ratiopil facilitates resizing and allows file formats other then Giftested with Python27 and Python33 by Vegaseat 18mar2013 "" Import iofrom PIL import Image, imagetktry: # Python2 Impor T Tkinter as TK from urllib2 import urlopenexcept importerror: # Python3 import Tkinter as TK from Urllib.request Impo RT Urlopendef Resize (W, H, W_box, H_box, pil_image): ' Resize a Pil_image object so it would fit into a box of size w_  Box times H_box, but retain aspect ratio "' F1 = 1.0*w_box/w # 1.0 Forces Float Division in Python2 f2 = 1.0*h_box/h factor = min ([f1, F2]) #print (F1, F2, factor) # test # Use best down-sizing filter width = Int (w*factor) height = int ( H*factor) return Pil_image.resize ((width, height), image.antialias) root = Tk. Tk () # Size of image display box you wantw_box = 400h_box = 350# Find yourself a picture in the Internet Web page you like# (right click on the picture, under Properties copy the address) # a L Arger (x) picture from the internet# URL name is a long, so split iturl1 = "HTTP://FREEFLOWERPICTURES.NET/IMAGE/FL owers/petunia/"URL2 =" petunia-flower.jpg "url = url1 + url2image_bytes = Urlopen (URL). read () # internal Data filedata_stre am = io. Bytesio (image_bytes) # Open as a PIL image objectpil_image = Image.open (data_stream) # Get the size of the Imagew, h = pil_i mage.size# Resize the image so it retains its aspect ration# but fits into the specified display boxpil_image_resized = RE Size (W, H, W_box, H_box, Pil_image) # Optionally show resized image info ... # Get the size of the resized imagewr, hr = PiL _image_resized.size# split off image file Namefname = url.split ('/') [ -1]SF = ' resized {} ({}x{}) '. Format (fname, WR, HR) Roo T.title (SF) # convert PIL Image object to Tkinter photoimage objecttk_image = Imagetk.photoimage (pil_image_resized) # put th e image on a WIDGET the size of the specified display Boxlabel = tk. Label (Root, Image=tk_image, Width=w_box, Height=h_box) label.pack (padx=5, pady=5) Root.mainloop ()

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