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65 lines
1.5 KiB
Python
65 lines
1.5 KiB
Python
#!/usr/bin/env python
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#
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# The Python Imaging Library
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# $Id$
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#
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# this demo script creates four windows containing an image and a slider.
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# drag the slider to modify the image.
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#
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import sys
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if sys.version_info[0] > 2:
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import tkinter
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else:
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import Tkinter as tkinter
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from PIL import Image, ImageTk, ImageEnhance
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#
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# enhancer widget
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class Enhance(tkinter.Frame):
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def __init__(self, master, image, name, enhancer, lo, hi):
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tkinter.Frame.__init__(self, master)
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# set up the image
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self.tkim = ImageTk.PhotoImage(image.mode, image.size)
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self.enhancer = enhancer(image)
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self.update("1.0") # normalize
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# image window
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tkinter.Label(self, image=self.tkim).pack()
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# scale
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s = tkinter.Scale(self, label=name, orient=tkinter.HORIZONTAL,
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from_=lo, to=hi, resolution=0.01,
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command=self.update)
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s.set(self.value)
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s.pack()
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def update(self, value):
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self.value = float(value)
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self.tkim.paste(self.enhancer.enhance(self.value))
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#
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# main
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if len(sys.argv) != 2:
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print("Usage: enhancer file")
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sys.exit(1)
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root = tkinter.Tk()
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im = Image.open(sys.argv[1])
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im.thumbnail((200, 200))
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Enhance(root, im, "Color", ImageEnhance.Color, 0.0, 4.0).pack()
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Enhance(tkinter.Toplevel(), im, "Sharpness", ImageEnhance.Sharpness, -2.0, 2.0).pack()
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Enhance(tkinter.Toplevel(), im, "Brightness", ImageEnhance.Brightness, -1.0, 3.0).pack()
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Enhance(tkinter.Toplevel(), im, "Contrast", ImageEnhance.Contrast, -1.0, 3.0).pack()
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root.mainloop()
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