这段代码可以帮助你判断任意图片的主色调，使用了简单的统计算法实现
$i = imagecreatefromjpeg(image.jpg); for ($x=0;$x for ($y=0;$y $rgb = imagecolorat($i,$x,$y); $r = ($rgb >> 16) & 0xff; $g = ($rgb >> & 0xff; $b = $rgb & 0xff; $rtotal += $r; $gtotal += $g; $btotal += $b; $total++; } } $raverage = round($rtotal/$total); $gaverage = round($gtotal/$total); $baverage = round($btotal/$total);
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主色调, php