I'm trying to implement image processing s/w that requires me to implement an image enhancement module that performs various operations like Color, Contrast, Brightness, Sharpness manipulation on the same image. I've implemented a module but it works on the same (original) image and changes done are not reflected.
Please help.
#enh.py
# this script creates four windows containing an image and a slider.
# drag the slider to modify the image.
#
from Tkinter import *
from PIL import Image, ImageTk, ImageEnhance
import sys
import histogram
#
# enhancer widget
class Enhance(Frame):
def __init__(self, master, name, enhancer, lo, hi):
Frame.__init__(self, master)
self.enhancer = enhancer(image)
self.update('1.0') # normalize
s = Scale(self, label=name, orient=HORIZONTAL,
from_=lo, to=hi, resolution=0.01,
command=self.update)
s.set(self.value)
s.grid(row=0,column=0)
def update(self, value):
self.value = eval(value)
tkim.paste(self.enhancer.enhance(self.value))
self.enhancer.enhance(self.value).save("tmp.jpg")
histogram.make(self,"tmp.jpg")
self.image= Image.open('tmp.jpg')
def save_op():
op.save("new.jpg")
#
# main
call statements-
nh.image = Image.open(filename)
enh.image = enh.image.resize((700,500),Image.ANTIALIAS)
enh.tkim = ImageTk.PhotoImage(enh.image.mode,enh.image.size)
enh.Enhance(root, "Color", ImageEnhance.Color, 0.0, 4.0).grid(row=3,column=0)
enh.Enhance(root, "Sharpness", ImageEnhance.Sharpness, -2.0, 2.0).grid(row=3,column=1)
enh.Enhance(root, "Brightness", ImageEnhance.Brightness, -1.0, 3.0).grid(row=4,column=0)
enh.Enhance(root, "Contrast", ImageEnhance.Contrast, -1.0, 3.0).grid(row=4,column=1)
