PHP圖片描邊字與馬賽克(例)-php教程-PHP中文網

PHP圖片描邊字與馬賽克(例)

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發布： 2016-07-25 08:55:14

原創

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/**
* GD 圖片文字外層
*
* @copyright UGiA.CN
* [url=home.php?mod=space&uid=17823]@LINK[/url] www.ugia.cn / ?p=88
* @edit bbs.it-home.org
*/
function imagetextouter(&$im, $size, $x, $y, $顏色, $fontfile, $text, $outer)
{
if (!function_exists('ImageColorAllocateHEX'))
{
function ImageColorAllocateHEX($im, $s)
function ImageColorAllocateHEX($im, $s)
if($s{0} == "#") $s = substr($s,1);
$bg_dec = hexdec($s);
return imagecolorallocate($im,
( $ bg_dec & 0xFF0000) >> 16,
($bg_dec & 0x00FF00) >> 8,
($bg_dec & 0x0000FF)
);
} if (is_file($fontfile))
{
$ttf = true;
$area = imagettfbbox($size, $angle, $fontfile, $text);
$width = $area[2] - $area[0] 2;
$height = $area[1] - $area[5] 2;
}
else
{
$width = strlen($text) * 10;
$height = 16;
}
$im_tmp = imagecreate($width, $height);
$white = imagecreate($width, $height);
$white = imagecolorallocate($ im_tmp, 255, 255, 255);
$black = imagecolorallocate($im_tmp, 0, 0, 0);
$color = ImageColorAllocateHEX($im, $color);
$color = ImageColorAllocateHEX($im, $color);
$color = ImageColorAllocateHEX($im, $color);
$.m = ImageColorAllocateHEX($im, $color);
$ $im, $outer);
if ($ttf)
{
imagettftext($im_tmp, $size, 0, 0, $height - 2, $black, $fontfile, $text);
imagettftext($im, $size, 0, $x, $y, $color, $fontfile, $text);
$y = $y - $height 2;
}
else
{
映像字串($im_tmp, $size, 0, 0, $text, $black);
映像字串($im, $size, $x, $y, $text, $顏色);
}
For ($i = 0; $i {
for ($j = 0; $j {
$c = ImageColorAt($im_tmp, $i, $j);
if ($c !== $white)
{
ImageColorAt ($im_tmp, $i, $ j - 1) != $white || imagesetpixel($im, $x $i, $y $j - 1, $outer);
ImageColorAt ($im_tmp, $i, $j 1) != $white || imagesetpixel($im, $x $i, $y $j 1, $outer);
ImageColorAt ($im_tmp, $i - 1, $j) != $white || imagesetpixel($im, $x $i - 1, $y $j, $outer);
ImageColorAt ($im_tmp, $i 1, $j) != $white || imagesetpixel($im, $x $i 1, $y $j, $outer);
// 取消註釋，與Fireworks的發光效果相同
/*
ImageColorAt ($im_tmp, $i - 1, $j - 1) != $white || imagesetpixel($im, $x $i - 1, $y $j - 1, $outer);
ImageColorAt ($im_tmp, $i 1, $j - 1) != $white || imagesetpixel($im, $x $i 1, $y $j - 1, $outer);
ImageColorAt ($im_tmp, $i - 1, $j 1) != $white || imagesetpixel($im, $x $i - 1, $y $j 1, $outer);
ImageColorAt ($im_tmp, $i 1, $j 1) != $white || imagesetpixel($im, $x $i 1, $y $j 1, $outer);
*/
}
}
}
imagedestroy($im_tmp);

}

imagedestroy($im_tmp); } imagedestroy($im_tmp);

}

imagedestroy($im_tmp);

}

imagedestroy($im_tmp);

}

}
?>
複製程式碼
2，呼叫範例：

header("內容類型：image/png");

$im = imagecreatefromjpeg("bluesky.jpg "bluesky.jpg " ;

$white = imagecolorallocate($im, 255,255,255);

imagetextouter($im, 9, 10, 20, '#000000', "simsun.ttc", '新年快樂', '#ffffff ') ;

imagetextouter($im, 2, 10, 30, '#FFFF00', "", '你好，世界！', '#103993'); PHP圖片描邊字與馬賽克(例)

imagepng($im);

imagedestroy ($im);

感謝馬賽克：void imagemask (resource image, int x1, int y1, int x2 , inty int x1, int y1, int x2 , inty int x1, int y1, int x2 , inty int x1, int , int 深) imagemask() 把座標 x1，y1 到 x2，y2（圖左上角為 0, 0）的幾何加上馬賽克。深為模糊程度，數字越大越模糊。
效果，如下圖：
1，馬賽克函數程式碼：
/**
* GD 影像遮罩
*
* @edit bbs.it-home.org
*/
函數 imagemask(&$im, $x1, $y1, $ x2 , $y2, $deep)

{

for($x = $x1; $x { for ($y = $y1 ; $ y { $color = ImageColorAt ($im, $x round($deep / 2), $y round($deep / 2)); imagefilledrectangle ($im, $x, $y, $x $deep, $y $deep, $color); } }}?>複製程式碼

2，呼叫範例：