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for loop with Tk PIL image loading

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kingofkya

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for loop with Tk PIL image loading

Sep 26th, 2009

Ok my script takes a list of files picks out all jpgs and stores it in files[] now the problem is how do I display all thous images in tk gui window below is what i have that works for 1 image how do i make this work for basically an unlimited amount of images.

 Help with Code Tags 
 Python Syntax (Toggle Plain Text) 
    for file in files[:]:
        image = Image.open(filedir+"/"+file)
        ##((width, height))
        image.thumbnail((160, 240))
        photo = ImageTk.PhotoImage(image)
        label = Label(image=photo)
        label.image = image # keep a reference!
        label.pack()
 
 
        print files
    return
    for file in files[:]:
        image = Image.open(filedir+"/"+file)
        ##((width, height))
        image.thumbnail((160, 240))
        photo = ImageTk.PhotoImage(image)
        label = Label(image=photo)
        label.image = image # keep a reference!
        label.pack()

        
        print files
    return

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Re: for loop with Tk PIL image loading

Sep 27th, 2009

Hint:
Looks to me like you are creating the same label over and over again.

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kingofkya

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Re: for loop with Tk PIL image loading

Sep 27th, 2009

Ok yeah what would be the right way to set it up for multiply images

would a do something like
count += 1
then lable+(count) = whatever

Last edited by kingofkya; Sep 27th, 2009 at 3:35 pm.

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Re: for loop with Tk PIL image loading

Sep 27th, 2009

You could take each labelobject an append it to a list.

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Re: for loop with Tk PIL image loading

Sep 27th, 2009

Try something like this:

 Help with Code Tags 
 python Syntax (Toggle Plain Text) 
    label = list(range(len(files)))
    for k, fname in enumerate(files):
        image = Image.open(filedir+"/"+fname)
        ##((width, height))
        image.thumbnail((160, 240))
        photo = ImageTk.PhotoImage(image)
        label[k] = Label(image=photo)
        label[k].image = image # keep a reference!
        #label[k].pack()  # pack when you want to display it
 
 
        #print files
    return ...
    label = list(range(len(files)))
    for k, fname in enumerate(files):
        image = Image.open(filedir+"/"+fname)
        ##((width, height))
        image.thumbnail((160, 240))
        photo = ImageTk.PhotoImage(image)
        label[k] = Label(image=photo)
        label[k].image = image # keep a reference!
        #label[k].pack()  # pack when you want to display it


        #print files
    return ...

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Re: for loop with Tk PIL image loading

Sep 30th, 2009

thanks I was as trying to do image.append and it wasent working

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Re: for loop with Tk PIL image loading

Sep 30th, 2009

Is this line correct
label[k] = Label(picSet, image=photo)
if earlier in the code
picSet = Tk()

I get TclError: image "pyimage75" doesn't exist

However if i remove picSet it puts large spaces in the root window but no pics showup

 Help with Code Tags 
 Python Syntax (Toggle Plain Text) 
    label = list(range(len(files)))
    for k, fname in enumerate(files):
        image = Image.open(filedir+"/"+fname)
        ##((width, height))
        image.thumbnail((160, 240))
        photo = ImageTk.PhotoImage(image)
        label[k] = Label(picSet, image=photo)
        label[k].image = image # keep a reference!
        label[k].pack()  # pack when you want to display it
        picSet.mainloop()
    label = list(range(len(files)))
    for k, fname in enumerate(files):
        image = Image.open(filedir+"/"+fname)
        ##((width, height))
        image.thumbnail((160, 240))
        photo = ImageTk.PhotoImage(image)
        label[k] = Label(picSet, image=photo)
        label[k].image = image # keep a reference!
        label[k].pack()  # pack when you want to display it
        picSet.mainloop()

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Re: for loop with Tk PIL image loading

Sep 30th, 2009

in the process of debugging i separated the problem of the script now this gives me the blank spaces in the root window but no images and no errors

 Help with Code Tags 
 Python Syntax (Toggle Plain Text) 
from  os import *
from Tkinter import *
import tkFileDialog
from PIL import Image, ImageTk
 
root = Tk()
root.title("BIEC Picture Viewer")
title = Label(root, text="Select a Set of images")
 
 
 
filedir = tkFileDialog.askdirectory()
files = listdir(filedir)
for file in files[:]:
    if(file.split(".")[-1].upper() != 'JPG'):
        files.remove(file)
label = list(range(len(files)))
for k, fname in enumerate(files):
    image = Image.open(filedir+"/"+fname)
    ##((width, height))
    image.thumbnail((160, 240))
    photo = ImageTk.PhotoImage(image)
    label[k] = Label(root, image=photo)
    label[k].image = image # keep a reference!
    label[k].pack()  # pack when you want to display it
picSet.mainloop()
from  os import *
from Tkinter import *
import tkFileDialog
from PIL import Image, ImageTk

root = Tk()
root.title("BIEC Picture Viewer")
title = Label(root, text="Select a Set of images")



filedir = tkFileDialog.askdirectory()
files = listdir(filedir)
for file in files[:]:
    if(file.split(".")[-1].upper() != 'JPG'):
        files.remove(file)
label = list(range(len(files)))
for k, fname in enumerate(files):
    image = Image.open(filedir+"/"+fname)
    ##((width, height))
    image.thumbnail((160, 240))
    photo = ImageTk.PhotoImage(image)
    label[k] = Label(root, image=photo)
    label[k].image = image # keep a reference!
    label[k].pack()  # pack when you want to display it
picSet.mainloop()

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Re: for loop with Tk PIL image loading

Oct 1st, 2009

Some ideas. First, tkinter does not display all image types. I do not think that it will display a JPG but am not sure. Convert some pictures to a gif and see it that works. Second, "file" is a reserved word and so should not be a variable name, Third, you are not iterating through the entire list of files because of the delete in the for loop. Append the names you want to keep to a second list. Also, you don't have to create a list of n elements, just append as you go along (see below). Finally, if you don't know about effbot, it is a good reference. http://effbot.org/tkinterbook/label.htm

 Help with Code Tags 
 Python Syntax (Toggle Plain Text) 
label_list = []
for k, fname in enumerate(files):
    image = Image.open(filedir+"/"+fname)
    ##((width, height))
    image.thumbnail((160, 240))
    photo = ImageTk.PhotoImage(image)
    this_label = Label(root, image=photo) 
    this_label.pack()  # pack when you want to display it
    label_list.append( this_label )
picSet.mainloop()
label_list = []
for k, fname in enumerate(files):
    image = Image.open(filedir+"/"+fname)
    ##((width, height))
    image.thumbnail((160, 240))
    photo = ImageTk.PhotoImage(image)
    this_label = Label(root, image=photo) 
    this_label.pack()  # pack when you want to display it
    label_list.append( this_label )
picSet.mainloop()

Last edited by woooee; Oct 1st, 2009 at 1:59 am.

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Re: for loop with Tk PIL image loading

#10

Oct 1st, 2009

Tkinter is somewhat finicky about persistent images. Take a look at this example where I had to create a photo list to make the label list work. Not quite sure how those two lists connect:
http://www.daniweb.com/forums/showth...48#post1001448

Last edited by vegaseat; Oct 1st, 2009 at 10:10 am.

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