php如何判断图片颜色类型？实例教程
时间：2021-07-01 10:21:17
帮助过：14人阅读
- $i = imagecreatefromjpeg("image.jpg");
- for ($x=0;$xfor ($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++;
- }
- } // bbs.it-home.org
- $rAverage = round($rTotal/$total);
- $gAverage = round($gTotal/$total);
- $bAverage = round($bTotal/$total);
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