How to find the Dominant color in image?

Question

i want to find the dominant color in image, how can i do it ?

it would be great if i can get this in HEX code (exm: #eeeeee)

Answer 1

To find the most "dominant" color in an image, meaning the color that is most prevalent in the image: you'd need to create a histogram of the image.

Here is an the code from this article on how to create a histogram in PHP. (Website has gone off line several times)

> 16) & 0xFF;
                $g = ($rgb >> 8) & 0xFF;
                $b = $rgb & 0xFF;

                // get the Value from the RGB value

                $V = round(($r + $g + $b) / 3);

                // add the point to the histogram

                $histo[$V] += $V / $n;

        }
}

// find the maximum in the histogram in order to display a normated graph

$max = 0;
for ($i=0; $i<255; $i++)
{
        if ($histo[$i] > $max)
        {
                $max = $histo[$i];
        }
}

echo "
";
for ($i=0; $i<255; $i++)
{
        $val += $histo[$i];

        $h = ( $histo[$i]/$max )*$maxheight;

        echo "";
}
echo "
";
?> 

In that example $max is your most "dominant" color.