my own HDR Tonemapping?! why not...

Ok that's the result. Ok, it is not the most impressive HDR ever, BUT it is the first one that was created and tonemapped using my very first HDR/Tonemapping algorithm.

It was created using 3 photos of my livingroom table. The algorithm is nothing special - at the moment - but I will keep improving it. Maybe it get's better - some day.


Here you can see the source code (python):

import Image
import ImageEnhance
import math

print "Salendrons HDR Tonemapper"
out = raw_input("Save as: ")

im1 = Image.open("1.jpg")
im2 = Image.open("2.jpg")
im3 = Image.open("3.jpg")
imOut = out

w = im1.size[0]
h = im1.size[1]

print w
print h

x = 0
while x < w:
    y = 0
    while y < h:
        p1 = im1.getpixel((x,y))
        p2 = im2.getpixel((x,y))
        p3 = im3.getpixel((x,y))

        try:
            npr = int((math.log10(p1[0] + p2[0] + p3[0] + 1.0) / (math.log10(255 + 255 + 255 + 1.0))) * 255)
        except:
            npr = p1[0]
            print "ERR " + str(x)

        try:
            npg = int((math.log10(p1[1] + p2[1] + p3[1] + 1.0) / (math.log10(255 + 255 + 255 + 1.0))) * 255)
        except:
            npg = p1[1]
            print "ERR " + str(x)

        try:
            npb = int((math.log10(p1[2] + p2[2] + p3[2] + 1.0) / (math.log10(255 + 255 + 255 + 1.0))) * 255)
        except:
            npb = p1[2]
            print "ERR " + str(x)

        im1.paste((npr,npg,npb),(x,y,x+1,y+1))
      
        y = y + 1
    x = x + 1
    if x % 10 == 0:
        print x

enh1 = ImageEnhance.Color(im1)
im1 = enh1.enhance(2)

enh2 = ImageEnhance.Contrast(im1)
im1 = enh2.enhance(2)

enh3 = ImageEnhance.Brightness(im1)
im1 = enh3.enhance(0.9)

im1.save(imOut)

print "end"