Re: Nokia 8210

Robert Bowmaker wrote:
> 
> > A few days ago I have written a simple algorithm to correct documents
> > with wrapped lines (this algorithm will be part of JavE 2.0).
> > Unfortunately it only works when some assumptions are true for the
> > wrapped image:
> >  - there is only one line break in each line
> 
> That is kind of useless. How much bother could it be? I made a program that
> does any given number.

So you have to specify the number of pieces the lines are broken into?
But how do you find out how many space characters you have to add
between the pieces? What if some lines are broken once, others are
broken twice? I do not see a way to solve this problems...

Does your program work on the Nokia 8210 image?

> >  - each (correct) line has a character different from [space] at the
> > first and last position
> 
> ??? Why??? Sounds like a crappy algorithm.

Consider a line "XXX___YYY__" (where '_' are spaces) broken into two
pieces. As result you only get "XXX" and "YYY" - the space characters
have been deleted by your mail client. 
Now I only can see two ways to find out the number of spaces the
algorithm has to add between XXX and YYY:
1) You know the length of the line and there are no spaces after YYY.
2) You can try to find out the alignment of YYY by comparing the current
line to the next and previous ones (context).

1) is how my new algorithm works...
 
2) Will not produce reliable results with iamge2ascii-images. However it
does work quite well with line style ascii art, for there usually is
enough context information. Using  this I have already written another
repair algorithm that was included in Jave 1.1 to repair "shaked lines":
                        _________ _______  _______ _________
 \__   __/(  ____ \(  ____ \\__   __/
                        ) (   | (    \/| (    \/   ) (
      | |   | (__    | (_____    | |
                 | |   |  __)   (_____  )   | |
            | |   | (            ) |   | |
                       | |   | (____/\/\____) |   | |
)_(   (_______/\_______)   )_(

can be repaird to:
_________ _______  _______ _________
\__   __/(  ____ \(  ____ \\__   __/
   ) (   | (    \/| (    \/   ) (
   | |   | (__    | (_____    | |
   | |   |  __)   (_____  )   | |
   | |   | (            ) |   | |
   | |   | (____/\/\____) |   | |
   )_(   (_______/\_______)   )_(

I think combining both of my repair algorithms will not result in a good
solution to the wrapping problem we discussed above.

So how does your program do that? Can you explain it or may I have a
look at it (binary or source)?

> >  - each line is wrapped
> 
> We can assume that, unless all the lines are different lengths, which would
> be bad ascii art.

Ehm... Excuse me, but I do not consider this example here 'bad ascii
art', although most of the lines are different in length:
                                o
                             .-""|
                             |-""|
                                 |   _,.-+.
                                .|-""      '.
                               '.'           '.
                               | '.        _.-'|
                               |   +    .-"   J
            _.+        .....'.'|    '.-"      |
       _,.-"   '.   ..'88888888|     |       J''..
    +:"          '.'88888888888;-+.  |    _+.|8888:
    | \         _.-+88888888_."  _.F F +:'   '.8888'....
     L \   _.-""   |8888_.-"  _." J J J  '.    +88888888:
     |  '+"        |_.-"  _.-"    | | |    +    '.888888'._-'.
   .'8L  L         J  _.-"        | | |     '.    '.88_.-"    '.
  :888|  |         J-"            F F F       '.  _.-"          '.
 :88888L  L     _,  L            J J J          '|.               ';
:888888J  |  +-"  \ L         _.-+.|.+.          F '.          _.-"J
:8888888|  L L\    \|     _.-"     '   '.       J    '.     .-"    |
:8888888.L | | \    ',_.-"               '.     |      "..-"      J'.
:888888: |  L L '.    \    _,.-+.          '.   :+-.     |        F88'.
:888888:  L | |   \    ;.-"      '.          :-"    ":, J        |88888:
:888888:  |  L L   +:""            '.    _.-"     .-" | |      
J:888888:
:888888:   L | |   J \               '.-'     _.-'   J J        F
:888888:
 :88888:    \ L L   L \             _.-+  _.-'       | |       |  
:888888:
 :888888:    \| |   |  '.       _.-"   |-"          J J       J    
:888888:
 :888888'.    +'\   J    \  _.-"       F    ,-T"\   | |    .-'     
:888888:
  :888888 '.     \   L    +"          J    /  | J  J J  .-'       
.'888888:
   :8888888 :     \  |    |           |    F  '.|.-'+|-'         .'
8888888:
    :8888888 :     \ J    |           F   J     '...           .'
888888888:
     :8888888 :     \ L   |          J    |      \88'.''.''''.'
8888888888:
      :8888888 :     \|   |          |  .-'\     
\8888888888888888888888:
       :8888888 '.    J   |          F-'  .'\     
\8888888888888888888.'
        :88888888 :    L  |         J     : 8\      \8888888888888888.'
         :88888888 :   |  |        .+  ...' 88\      \8888888888.''.'
          :88888888 :  J  |     .-'  .'    8888\      \'.'''.'.'
           :88888888 :  \ |  .-'   .' 888888888.\    _-'
           :888888888 :  \|-'     .' 888888888.' \_-"
            '.88888888'..         : 8888888.'
              :88888888  ''''.''.' 88888888:  hs
              :8888888888888888888888888888:
               :88888888888888888888888888:
                :888888888888888888888888:
                 ''.8888888888888...'.'''
                    '''''......''

Oops, it already wrapped...
:-/

Markus

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