Remove all existing rectangles within a png image

[anas]

Hello,

I am a newbie to Imagemagick, I would like to remove all existing rectangles within a png image. First question : Is it possible to do such thing using this tool ?

• If yes, how could I do it (feel free to supply additional information (I'm curious) )?
• If no, which tool can I use in order to do such things ?

About the other questions :

• IM version : 6.9.8-10 Q8 x64
• Platform : Windows

Question for snibgo : What you mean by transparent (Would you replace the current pixels by surronding pixels) ?
For this image, the goal is to clear all rectangles so there still only text. the rectangles would be replaced by white pixels ideally. (as I don't understand what you mean clearly by transparent )


Thanks in advance,

[snibgo]

What do you mean by "rectangles"? Sample image, please. What do you mean by "remove"? Make those pixels some other colour? Or transparent? What version of IM? On what platform?

[anas]

@snibgo I answered your questions, is still remain some other important information that i did not supply ?

This is my first question, feel free to give me advises for better future questions

Thanks in advance

[snibgo]

Windows BAT script:

Code: Select all

rem The following turns white dark pixels that
rem form a line 25 or more pixels vertically
rem and then 30 or more horizontally.

set SRC=forms-studio.png

set LEN_V=25
set LEN_H=30

%IM%convert ^
  %SRC% ^
  ( +clone ^
    -threshold 50%% ^
    -write mpr:ORG ^
    -negate ^
    -morphology Erode rectangle:1x%LEN_V% ^
    -mask mpr:ORG -morphology Dilate rectangle:1x%LEN_H% ^
    +mask ^
  ) ^
  -compose Lighten -composite ^
  ( +clone ^
    -threshold 50%% ^
    -write mpr:ORG ^
    -negate ^
    -morphology Erode rectangle:%LEN_H%x1 ^
    -mask mpr:ORG -morphology Dilate rectangle:%LEN_H%x1 ^
    +mask ^
  ) ^
  -compose Lighten -composite ^
  noboxes.png

[anas]

Thank you. As I am curious about this tool, could you please explain the commands ?

Thanks in advance,

[snibgo]

The options are explained at http://www.imagemagick.org/script/comma ... ptions.php

"-morphology" is explained in more detail at http://www.imagemagick.org/Usage/morphology/

See also:
http://www.imagemagick.org/script/comma ... essing.php
http://www.imagemagick.org/Usage/
http://www.imagemagick.org/Usage/basics/

[anas]

Thank you very much,