overview of the first layer of correction
CLICK ON THE PICTURE TO ZOOM IT!
The “pool” in the middle is due to the limit of absorbance of the black (the contrast is too high between the dakest and the brightest part of the wall.)
NOTE: this picture is 10 times smaller than the original (the blog doesn’t support extra large pictures…)
to download the real Hi-res. picture, click here: https://adrienlucca.files.wordpress.com/2012/07/overview1.png