[magick-users] taking an average pixel color

[Anthony Thyssen]

"Mark D. Kahn" on  wrote...
| I have a 100x100 px image that I need to get the average color from.
| Any ideas on how to do this?
| 
| Thanks,
| -Mark

Simple..  resize the image to a single pixel, then read the color.
It is not perfect, but close enough for most needs.

   convert image.png -resize 1x1 txt:-

   # ImageMagick pixel enumeration: 1,1,255,RGB
   0,0: (185,187,214) #B9BBD6

If you want to use that color as a background you can then use -fx to
map the color.

I did this in my example pages as part of automatically working out an
average color of a background pattern over which a GIF image was to be
overlayed...

  http://www.cit.gu.edu.au/~anthony/graphics/imagick6/formats/#bg_pattern

  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
 -----------------------------------------------------------------------------
   "Brigadier, a straight line may be the shortest distance between two points,
       but it is by no means the most interesting." 
                                       -- Doctor Who, "The Time Warrior"
 -----------------------------------------------------------------------------
     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/
  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
 -----------------------------------------------------------------------------
    Dr Who:  "Aren't you going to say it's bigger on the inside than on
              the outside? Everyone else does."
    Colonel: "Why I should have thought that was quite obvious."
 -----------------------------------------------------------------------------
     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/