用PHP合并两个图像

时间:2010-10-06 19:48:23

标签: php image merge resize overlay

我正在尝试将两个图像与PHP合并。

例如......我将如何将图像置于图像2之上或合并为基本PHP? 我尝试过像水印这样的东西,但它似乎没有用。

Image One

alt text

图片二

alt text

......让它变成这个? 最终结果:

alt text

8 个答案:

答案 0 :(得分:109)

我从一个人那里得到了它。

<?php
$dest = imagecreatefrompng('vinyl.png');
$src = imagecreatefromjpeg('cover2.jpg');

imagealphablending($dest, false);
imagesavealpha($dest, true);

imagecopymerge($dest, $src, 10, 9, 0, 0, 181, 180, 100); //have to play with these numbers for it to work for you, etc.

header('Content-Type: image/png');
imagepng($dest);

imagedestroy($dest);
imagedestroy($src);
?>

答案 1 :(得分:21)

问题是关于合并两个图像,但是在这个特定情况下你不应该这样做。您应该将内容图像(即封面)放入<img />标记,将样式图像放入CSS,为什么?

  1. 正如我所说封面属于文档的内容,而黑胶唱片和影子只是页面样式的一部分。
  2. 这种分离使用起来更方便。用户可以轻松复制该图像。网络蜘蛛索引更容易。
  3. 最后,维护起来要容易得多。
  4. 所以使用一个非常简单的代码:

    <div class="cover">
       <img src="/content/images/covers/movin-mountains.png" alt="Moving mountains by Pneuma" width="100" height="100" />
    </div>
    
    .cover {
        padding: 10px;
        padding-right: 100px;
    
        background: url(/style/images/cover-background.png) no-repeat;
    }
    

答案 2 :(得分:7)

ImageArtist是由我创作的纯gd包装器,这使您可以非常容易地进行复杂的图像处理,因为使用这个功能强大的库,只需几步即可完成问题解决。

这是一个示例代码。

$img1 = new Image("./cover.jpg");
$img2 = new Image("./box.png");
$img2->merge($img1,9,9);
$img2->save("./merged.png",IMAGETYPE_PNG);

这就是我的结果。

enter image description here

答案 3 :(得分:2)

使用GD库或ImageMagick。我用谷歌搜索了“PHP GD合并图像”并得到了几篇关于这样做的文章。在过去,我所做的是创建一个大的空白图像,然后使用imagecopymerge()将这些图像粘贴到我原来的空白图像中。查看谷歌上的文章,你会发现一些你可以立即开始使用的源代码。

答案 4 :(得分:2)

您可以尝试我的功能,在不改变图像比例的情况下水平或垂直合并图像。只需复制粘贴即可。

function merge($filename_x, $filename_y, $filename_result, $mergeType = 0) {

    //$mergeType 0 for horizandal merge 1 for vertical merge

 // Get dimensions for specified images
 list($width_x, $height_x) = getimagesize($filename_x);
 list($width_y, $height_y) = getimagesize($filename_y);


$lowerFileName = strtolower($filename_x); 
if(substr_count($lowerFileName, '.jpg')>0 || substr_count($lowerFileName, '.jpeg')>0){
    $image_x = imagecreatefromjpeg($filename_x);    
}else if(substr_count($lowerFileName, '.png')>0){
    $image_x = imagecreatefrompng($filename_x); 
}else if(substr_count($lowerFileName, '.gif')>0){
    $image_x = imagecreatefromgif($filename_x); 
}


$lowerFileName = strtolower($filename_y); 
if(substr_count($lowerFileName, '.jpg')>0 || substr_count($lowerFileName, '.jpeg')>0){
    $image_y = imagecreatefromjpeg($filename_y);    
}else if(substr_count($lowerFileName, '.png')>0){
    $image_y = imagecreatefrompng($filename_y); 
}else if(substr_count($lowerFileName, '.gif')>0){
    $image_y = imagecreatefromgif($filename_y); 
}


if($mergeType==0){
    //for horizandal merge
     if($height_y<$height_x){
        $new_height = $height_y;

        $new_x_height = $new_height;
        $precentageReduced = ($height_x - $new_height)/($height_x/100);
        $new_x_width = ceil($width_x - (($width_x/100) * $precentageReduced));

         $tmp = imagecreatetruecolor($new_x_width, $new_x_height);
        imagecopyresampled($tmp, $image_x, 0, 0, 0, 0, $new_x_width, $new_x_height, $width_x, $height_x);
        $image_x = $tmp;

        $height_x = $new_x_height;
        $width_x = $new_x_width;

     }else{
        $new_height = $height_x;

        $new_y_height = $new_height;
        $precentageReduced = ($height_y - $new_height)/($height_y/100);
        $new_y_width = ceil($width_y - (($width_y/100) * $precentageReduced));

         $tmp = imagecreatetruecolor($new_y_width, $new_y_height);
        imagecopyresampled($tmp, $image_y, 0, 0, 0, 0, $new_y_width, $new_y_height, $width_y, $height_y);
        $image_y = $tmp;

        $height_y = $new_y_height;
        $width_y = $new_y_width;

     }

     $new_width = $width_x + $width_y;

     $image = imagecreatetruecolor($new_width, $new_height);

    imagecopy($image, $image_x, 0, 0, 0, 0, $width_x, $height_x);
    imagecopy($image, $image_y, $width_x, 0, 0, 0, $width_y, $height_y);

}else{


    //for verical merge
    if($width_y<$width_x){
        $new_width = $width_y;

        $new_x_width = $new_width;
        $precentageReduced = ($width_x - $new_width)/($width_x/100);
        $new_x_height = ceil($height_x - (($height_x/100) * $precentageReduced));

        $tmp = imagecreatetruecolor($new_x_width, $new_x_height);
        imagecopyresampled($tmp, $image_x, 0, 0, 0, 0, $new_x_width, $new_x_height, $width_x, $height_x);
        $image_x = $tmp;

        $width_x = $new_x_width;
        $height_x = $new_x_height;

     }else{
        $new_width = $width_x;

        $new_y_width = $new_width;
        $precentageReduced = ($width_y - $new_width)/($width_y/100);
        $new_y_height = ceil($height_y - (($height_y/100) * $precentageReduced));

         $tmp = imagecreatetruecolor($new_y_width, $new_y_height);
        imagecopyresampled($tmp, $image_y, 0, 0, 0, 0, $new_y_width, $new_y_height, $width_y, $height_y);
        $image_y = $tmp;

        $width_y = $new_y_width;
        $height_y = $new_y_height;

     }

     $new_height = $height_x + $height_y;

     $image = imagecreatetruecolor($new_width, $new_height);

    imagecopy($image, $image_x, 0, 0, 0, 0, $width_x, $height_x);
    imagecopy($image, $image_y, 0, $height_x, 0, 0, $width_y, $height_y);

}





$lowerFileName = strtolower($filename_result); 
if(substr_count($lowerFileName, '.jpg')>0 || substr_count($lowerFileName, '.jpeg')>0){
    imagejpeg($image, $filename_result);
}else if(substr_count($lowerFileName, '.png')>0){
    imagepng($image, $filename_result);
}else if(substr_count($lowerFileName, '.gif')>0){
    imagegif($image, $filename_result); 
}


 // Clean up
 imagedestroy($image);
 imagedestroy($image_x);
 imagedestroy($image_y);

}


merge('images/h_large.jpg', 'images/v_large.jpg', 'images/merged_har.jpg',0); //merge horizontally
merge('images/h_large.jpg', 'images/v_large.jpg', 'images/merged.jpg',1); //merge vertically

答案 5 :(得分:1)

您可以使用ImageMagick扩展程序执行此操作。我猜测combineImages()方法会做你想要的。

答案 6 :(得分:1)

PHP中的GD图像处理库可能是在PHP中处理图像的最佳选择。尝试使用其中一个imagecopy函数(imagecopy,imagecopymerge,...)。他们每个人以不同的方式组合2个图像。有关详细信息,请参阅php documentation on imagecopy

答案 7 :(得分:0)

合并两个图像png和jpg / png [图像蒙版]

//URL or Local path
$src_url = '1.png';
$dest_url = '2.jpg';
$src = imagecreatefrompng($src_url);
$dest1 = imagecreatefromjpeg($dest_url);

//if you want to make same size
list($width, $height) = getimagesize($dest_url);
list($newWidth, $newHeight) = getimagesize($src_url);
$dest = imagecreatetruecolor($newWidth, $newHeight);

imagecopyresampled($dest, $dest1, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);

list($src_w, $src_h) = getimagesize($src_url);

//merger with same size
$this->imagecopymerge_alpha($dest, $src, 0, 0, 0, 0, $src_w, $src_h, 100);

//show output on browser
header('Content-Type: image/png');
imagejpeg($dest);

imagecopymerge_alpha

function imagecopymerge_alpha($dst_im, $src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $pct)
    {
        $cut = imagecreatetruecolor($src_w, $src_h);
        imagecopy($cut, $dst_im, 0, 0, $dst_x, $dst_y, $src_w, $src_h);
        imagecopy($cut, $src_im, 0, 0, $src_x, $src_y, $src_w, $src_h);
        imagecopymerge($dst_im, $cut, $dst_x, $dst_y, 0, 0, $src_w, $src_h, $pct);
    }