[英]Python/Tkinter/PIL - Scale doesn't work
對我的簡單圖像查看器進行編碼后,我在其中擁有圖像並且可以按比例修改其亮度和對比度,因此遇到了我無法解決的Enhance類問題。 它不會給我任何錯誤,但是不能按我的意願工作。 我只想用秤移動它時調節亮度。 我還沒有實現第二個Enhance類,只是想制作第一個Enhance類並縮放圖像。 謝謝 :)
import tkinter as tk
from PIL import Image, ImageTk, ImageEnhance
class ImageViewer(tk.Frame):
def __init__(self, master):
tk.Frame.__init__(self, master, background="green")
# for now, don't use images.
self.im = Image.open("plant.jpg") #choose your picture
self.tkim = ImageTk.PhotoImage(self.im)
# these three widgets make up our main layout
label = tk.Label(self, image=self.tkim, text="label")
e = Enhance(self,self.im, ImageEnhance.Brightness)
e1 = Enhance1(self, self.im)
label.pack(side="bottom", fill="both", expand=True)
e.pack(side="left", fill="both", expand=True)
e1.pack(side="right", fill="both", expand=True)
class Enhance(tk.Frame):
def __init__(self, master,image, enhancer):
tk.Frame.__init__(self, master)
self.image = image
self.tkim = ImageTk.PhotoImage(image.mode, image.size)
self.enhancer = enhancer(image)
self.update_enhance("1.0")
s = tk.Scale(self, label="Brightness", orient=tk.VERTICAL,from_=3.0, to=-1.0, resolution=0.01,command=self.update_enhance)
s.set(self.value)
s.pack(side = "left", fill = "both", expand = True)
def update_enhance(self, value):
self.value = eval(value)
self.tkim.paste(self.enhancer.enhance(self.value))
# width, height, and color are only temporary, they
# make it easy to see the frames before they have
# any content
class Enhance1(tk.Frame):
def __init__(self, master, image):
self.image = image
# width, height, and color are only temporary, they
# make it easy to see the frames before they have
# any content
tk.Frame.__init__(self, master, background="blue", width=100, height=100)
if __name__ == "__main__":
root = tk.Tk()
ImageViewer(root).pack(fill="both", expand=True)
root.mainloop()
看起來您正在嘗試從單個圖像文件創建兩個圖像對象。 您正在顯示一個圖像,但是正在更新另一個。 在您的Enhance
類中,您將創建第二個self.tkim
實例並將增強的圖像粘貼到該實例,但是該圖像不會在任何地方顯示。 正在顯示原始圖像不會被你的增強功能修改。
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