在 Tkinter 中调整 PIL 中的图片大小

发布于 2024-09-30 05:06:22 字数 281 浏览 2 评论 0原文

我目前正在使用 PIL 在 Tkinter 中显示图像。我想暂时调整这些图像的大小,以便更容易查看。我该怎么办?

片段:

self.pw.pic = ImageTk.PhotoImage(Image.open(self.pic_file))
self.pw.pic_label = TK.Label(self.pw , image=self.pw.pic,borderwidth=0)         
self.pw.pic_label.grid(column=0,row=0)

I'm currently using PIL to display images in Tkinter. I'd like to temporarily resize these images so that they can be viewed more easily. How can I go about this?

Snippet:

self.pw.pic = ImageTk.PhotoImage(Image.open(self.pic_file))
self.pw.pic_label = TK.Label(self.pw , image=self.pw.pic,borderwidth=0)         
self.pw.pic_label.grid(column=0,row=0)

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评论(3

南风起 2024-10-07 05:06:22

这就是我所做的,它工作得很好...

image = Image.open(Image_Location)
image = image.resize((250, 250), Image.ANTIALIAS) ## The (250, 250) is (height, width)
self.pw.pic = ImageTk.PhotoImage(image)

你去:)

编辑:

这是我的导入语句:

from Tkinter import *
import tkFont
from PIL import Image

这是我改编此示例的完整工作代码:

im_temp = Image.open(Image_Location)
im_temp = im_temp.resize((250, 250), Image.ANTIALIAS)
im_temp.save("ArtWrk.ppm", "ppm") ## The only reason I included this was to convert
## The image into a format that Tkinter woulden't complain about
self.photo = PhotoImage(file="ArtWrk.ppm") ## Open the image as a tkinter.PhotoImage class()
self.Artwork.destroy() ## Erase the last drawn picture (in the program the picture I used was changing)
self.Artwork = Label(self.frame, image=self.photo) ## Sets the image too the label
self.Artwork.photo = self.photo ## Make the image actually display (If I don't include this it won't display an image)
self.Artwork.pack() ## Repack the image

这里是 PhotoImage 类文档:http://www.pythonware.com/library/tkinter/introduction/photoimage.htm

笔记...
在检查了有关 ImageTK 的 PhotoImage 类的 pythonware 文档(非常稀疏)之后,我发现如果您的代码片段有效,那么只要您导入 PIL“Image”库和 PIL“ImageTK”库,并且 PIL 和tkinter 是最新的。另一方面,我什至找不到“ImageTK”模块的生命。你能发布你的进口吗?

Here's what I do and it works pretty well...

image = Image.open(Image_Location)
image = image.resize((250, 250), Image.ANTIALIAS) ## The (250, 250) is (height, width)
self.pw.pic = ImageTk.PhotoImage(image)

There you go :)

EDIT:

Here is my import statement:

from Tkinter import *
import tkFont
from PIL import Image

And here is the complete working code I adapted this example from:

im_temp = Image.open(Image_Location)
im_temp = im_temp.resize((250, 250), Image.ANTIALIAS)
im_temp.save("ArtWrk.ppm", "ppm") ## The only reason I included this was to convert
## The image into a format that Tkinter woulden't complain about
self.photo = PhotoImage(file="ArtWrk.ppm") ## Open the image as a tkinter.PhotoImage class()
self.Artwork.destroy() ## Erase the last drawn picture (in the program the picture I used was changing)
self.Artwork = Label(self.frame, image=self.photo) ## Sets the image too the label
self.Artwork.photo = self.photo ## Make the image actually display (If I don't include this it won't display an image)
self.Artwork.pack() ## Repack the image

And here are the PhotoImage class docs: http://www.pythonware.com/library/tkinter/introduction/photoimage.htm

Note...
After checking the pythonware documentation on ImageTK's PhotoImage class (Which is very sparse) I appears that if your snippet works than this should as well as long as you import the PIL "Image" Library an the PIL "ImageTK" Library and that both PIL and tkinter are up-to-date. On another side-note I can't even find the "ImageTK" module life for the life of me. Could you post your imports?

风筝在阴天搁浅。 2024-10-07 05:06:22

如果您不想保存,可以尝试:

from Tkinter import *
from PIL import Image, ImageTk

root = Tk()

same = True
#n can't be zero, recommend 0.25-4
n=2

path = "../img/Stalin.jpeg" 
image = Image.open(path)
[imageSizeWidth, imageSizeHeight] = image.size

newImageSizeWidth = int(imageSizeWidth*n)
if same:
    newImageSizeHeight = int(imageSizeHeight*n) 
else:
    newImageSizeHeight = int(imageSizeHeight/n) 

image = image.resize((newImageSizeWidth, newImageSizeHeight), Image.ANTIALIAS)
img = ImageTk.PhotoImage(image)

Canvas1 = Canvas(root)

Canvas1.create_image(newImageSizeWidth/2,newImageSizeHeight/2,image = img)      
Canvas1.config(bg="blue",width = newImageSizeWidth, height = newImageSizeHeight)
Canvas1.pack(side=LEFT,expand=True,fill=BOTH)

root.mainloop()

if you don't want save it you can try it:

from Tkinter import *
from PIL import Image, ImageTk

root = Tk()

same = True
#n can't be zero, recommend 0.25-4
n=2

path = "../img/Stalin.jpeg" 
image = Image.open(path)
[imageSizeWidth, imageSizeHeight] = image.size

newImageSizeWidth = int(imageSizeWidth*n)
if same:
    newImageSizeHeight = int(imageSizeHeight*n) 
else:
    newImageSizeHeight = int(imageSizeHeight/n) 

image = image.resize((newImageSizeWidth, newImageSizeHeight), Image.ANTIALIAS)
img = ImageTk.PhotoImage(image)

Canvas1 = Canvas(root)

Canvas1.create_image(newImageSizeWidth/2,newImageSizeHeight/2,image = img)      
Canvas1.config(bg="blue",width = newImageSizeWidth, height = newImageSizeHeight)
Canvas1.pack(side=LEFT,expand=True,fill=BOTH)

root.mainloop()
转角预定愛 2024-10-07 05:06:22

最简单的方法可能是根据原始图像创建一个新图像,然后用较大的副本替换原始图像。为此,tk 图像有一个 copy 方法,可让您在制作副本时对原始图像进行缩放或二次采样。不幸的是,它只能让您以 2 倍进行缩放/子采样。

the easiest might be to create a new image based on the original, then swap out the original with the larger copy. For that, a tk image has a copy method which lets you zoom or subsample the original image when making the copy. Unfortunately it only lets you zoom/subsample in factors of 2.

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