On Mon, 21 Jul 2008, Christopher Spears wrote: > By all means, share your script! Even if I don't use it, I can learn > something from it!
Well, maybe. If nothing else, perhaps you'll learn some new bad habits. The timestamp on this file shows that I dropped this project in June 2005, and you can see it's unfinished. It still has a few raw edges (including a prompt for a "preserve EXIF" feature that never got written; and lots of debugging print statements), but it's not bad as a proof-of-concept. The code imports and depends on Gene Cash's EXIF.py module; it now apparently lives at http://sourceforge.net/projects/exif-py/ rather than the URL in the code. But still, if the EXIF module doesn't exist, it just uses the file's timestamp as the date -- not exactly the safest way of figuring the date the photo was taken. At the time I wrote this, I was unaware that PIL had some then-undocumented EXIF support; I probably would have used that to avoid importing a non-standard module. Use this code however you wish, if you find it helpful. Ignore the copyright statement; BaishuSoft was just a little joke between my wife and me. ------snip------- import Tkinter as Tk import tkFileDialog import os, sys, time import Image, ImageDraw, ImageFont, ImageTk class MyApp: """Begin a Tkinter-based application""" def __init__(self, root): """initializer for Tkinter-based application""" self.root=root self.root.title("Picture TimeStamper") NoticeFrame = Tk.Frame(self.root) NoticeFrame.pack() headertext = u""" Baishusoft Picture TimeStamper \U000000A9 2005 Baishusoft LLP """ Tk.Label(NoticeFrame,text=headertext).pack() ButtonFrame = Tk.Frame(self.root) ButtonFrame.pack() SelButton = Tk.Button(ButtonFrame, text="Select Directory", command=self.select) SelButton.pack(side="left") QuitButton = Tk.Button(ButtonFrame, text="Quit", command=self.quit) QuitButton.pack(side="left") OptionsFrame = Tk.Frame(self.root) OptionsFrame.pack() self.EXIFvar = Tk.IntVar() self.EXIFCheckbox = Tk.Checkbutton( OptionsFrame, text="Preserve EXIF (requires JHead)", variable = self.EXIFvar) self.EXIFCheckbox.pack(side="top") self.Progressvar = Tk.IntVar() self.ProgressCheckbox = Tk.Checkbutton( OptionsFrame, text="Show progress", variable = self.Progressvar) self.ProgressCheckbox.pack(side="left") self.StatusFrame = Tk.Frame(self.root) self.StatusFrame.pack() self.ImageLabel = Tk.Label(self.StatusFrame) self.ImageLabel.pack() self.FilenameLabel = Tk.Label(self.StatusFrame) self.FilenameLabel.pack() def select(self): dirname = tkFileDialog.askdirectory() if dirname != '': os.path.walk(dirname, self.process_files, None) print "PROCESSING COMPLETED. SELECT MORE FILES OR QUIT." else: print "NO DIRECTORY SELECTED." return def quit(self): print "EXITING." sys.exit() def process_files(self, junk, dirpath, namelist): for filename in namelist: stamped_filename = self.getstampedfilename(filename) if stamped_filename is not None: if os.path.isfile(os.path.join(dirpath,stamped_filename)): print "FILE EXISTS, SKIPPING:", stamped_filename else: self.updatestatus(dirpath, filename) datetext = self.timestamp(dirpath, filename, stamped_filename) print "FILE IMPRINTED:", stamped_filename, datetext def updatestatus(self,dirpath,filename): im=Image.open(os.path.join(dirpath, filename)) print time.asctime(), "thumbnailing...", filename, im.mode, im.size im.thumbnail((100,75)) print time.asctime(), "showing...", filename, im.mode, im.size #im.show() self.Tkimage = ImageTk.PhotoImage(im) print "created" self.ImageLabel.config(image=self.Tkimage) self.ImageLabel.pack() self.FilenameLabel.config(text=filename) self.FilenameLabel.pack() self.StatusFrame.pack() self.root.update() def getstampedfilename(self, filename): fn, ft = os.path.splitext(filename) if ft.upper() in [".JPG", ".JPEG"] and \ not (fn.upper().endswith("-DATED")): return fn + "-dated" + ft else: return None def timestamp(self, dirpath, original_filename, new_filename): full_original_filename = os.path.join(dirpath, original_filename) full_new_filename = os.path.join(dirpath, new_filename) font=ImageFont.truetype("Arial.ttf", 40) datetext = GetFileDate(full_original_filename) im = Image.open(full_original_filename) im0 = Imprint(im, datetext, font=font, opacity=0.6, color=(255,255,255)) im0.save(full_new_filename, "JPEG") return datetext def GetFileDate(file): """ Returns the date associated with a file. For JPEG files, it will use the EXIF data, if available """ try: import EXIF # EXIF.py from http://home.cfl.rr.com/genecash/digital_camera.html f = open(file, "rb") tags = EXIF.process_file(f) f.close() return str(tags['Image DateTime']) except (KeyError, ImportError): # EXIF not installed or no EXIF date available import os.path, time return time.ctime(os.path.getmtime(file)) def ReduceOpacity(im, opacity): """ Returns an image with reduced opacity. Taken from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/362879 """ import ImageEnhance assert opacity >= 0 and opacity <= 1 if im.mode != 'RGBA': im = im.convert('RGBA') else: im = im.copy() alpha = im.split()[3] alpha = ImageEnhance.Brightness(alpha).enhance(opacity) im.putalpha(alpha) return im def Imprint(im, inputtext, font=None, color=None, opacity=.6, margin=(30,30)): """ imprints a PIL image with the indicated text in lower-right corner """ if im.mode != "RGBA": im = im.convert("RGBA") textlayer = Image.new("RGBA", im.size, (0,0,0,0)) textdraw = ImageDraw.Draw(textlayer) textsize = textdraw.textsize(inputtext, font=font) textpos = [im.size[i]-textsize[i]-margin[i] for i in [0,1]] textdraw.text(textpos, inputtext, font=font, fill=color) if opacity != 1: textlayer = ReduceOpacity(textlayer,opacity) return Image.composite(textlayer, im, textlayer) root = Tk.Tk() myapp = MyApp(root) root.mainloop() _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
