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我正在尝试在Tkinter中设置GUI,以便我可以显示一系列图像(名为file01.jpg,file02.jpg等)。目前,我正在做它通过创建一个序列对象来管理,我在乎的图像列表:使用PIL/Tkinter分析图像序列
class Sequence:
def __init__(self,filename,extension):
self.fileList = []
#takes the current directory
listing = os.listdir(os.getcwd())
#and makes a list of all items in that directory that contains the filename and extension
for item in listing:
if filename and extension in item:
self.fileList.append(item)
#and then sorts them into order
self.fileList.sort()
print self.fileList
def nextImage(self):
#returns a string with the name of the next image
return self.fileList.pop(0)
然后我用一个很简单的Tkinter脚本我在网上找到产生的窗口,放置图像有:
window = Tkinter.Tk()
window.title('Image Analysis!')
sequence = Sequence('test','jpg')
image = Image.open("test01.jpg")
image = image.convert('L')
imPix = image.load()
canvas = Tkinter.Canvas(window, width=image.size[0], height=image.size[1])
canvas.pack()
image_tk = ImageTk.PhotoImage(image)
canvas.create_image(image.size[0]//2, image.size[1]//2, image=image_tk)
window.bind("<space>", lambda e: nextFrame(sequence_object=sequence,event=e))
Tkinter.mainloop()
其中如nextFrame定义:
def nextFrame(sequence_object,event=None):
nextImage = sequence_object.nextImage()
print 'Next Image is: ',nextImage
image = Image.open(nextImage)
image = image.convert('L')
imPix = image.load()
image_tk = ImageTk.PhotoImage(image)
canvas.create_image(image.size[0]//2, image.size[1]//2, image=image_tk)
canvas.update()
以我蟒缓冲器我看到正确的图像序列弹出( '下一个图像:test02,JPG' 等),但新的即时通讯年龄永远不会弹出!
有没有人有任何解释为什么图像不会弹出?
谢谢!
弥敦道lachenmyer
看来你是对的! nextFrame()中的一个简单的'全局image_tk'修复了它。 – 2012-03-26 23:11:44
@asymptoticdesign:无论你创建一个变量来保存图像,确保该变量不是本地的。 – 2012-03-26 23:13:44