> 16) & 0xFF; $g = ($rgb >> & 0xFF; $b = $rgb & 0xFF; $rTotal += $r; $gTotal += $g; $bTotal += $b; $total++; } } // bbs.it-home.org$r">
输入banner图图片脚本导航/分类

php如何判断图片颜色类型?实例教程

  1. $i = imagecreatefromjpeg("image.jpg");
  2. for ($x=0;$xfor ($y=0;$y$rgb = imagecolorat($i,$x,$y);
  3. $r = ($rgb >> 16) & 0xFF;
  4. $g = ($rgb >> & 0xFF;
  5. $b = $rgb & 0xFF;
  6. $rTotal += $r;
  7. $gTotal += $g;
  8. $bTotal += $b;
  9. $total++;
  10. }
  11. } // bbs.it-home.org
  12. $rAverage = round($rTotal/$total);
  13. $gAverage = round($gTotal/$total);
  14. $bAverage = round($bTotal/$total);