ok this is what i think we need to do, and is what im going to look into...
I think we need to consider the green pixel values from teh center few lines of the image. they are:
(each line is the row of colours before the puple line, which is green 0)
110 102 97 99 109 101 93 100 100
98 114 94 103 106 115
106 107 99 98 97 100
93 109 98 110 93 101 95
102 99 103 96 114 104 109 109 102
102 104 93 94 110
this converts to :
ABCDEFGHH IJKLMN MODICH GEIAGFP BDLQJREEB BRGKA
(when you assign a letter from the alphabet sequentially to each unique number)
This is it reversed:
AKGRB BEERJQLDB PFGAIEG HCIDOM NMLKJI HHGFEDCBA
This is it with X as green value 0 (ie a space in the other)
ABCDEFGHHxIJKLMNxMODICHxGEIAGFPxBDLQJREEBxBRGKA
This is the difference between each green value if you start at 0 for 110:
0 8 5 2 10 8 8 7 0
2 16 20 9 3 9
9 1 8 1 1 3
7 16 11 12 17 8 6
7 3 4 7 18 10 5 0 7
10 2 11 1 6
This becomes: (with a letter assigned as above)
ABCDEBBFA DGHIJI IKBKKJ FGLMOBP FJQFRECAF EDLKP
Hope this helps someone