php 用PHP合并两个图像
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Merging two images with PHP
提问by homework
I'm trying to merge two images together with PHP.
我正在尝试将两个图像与 PHP 合并在一起。
For example... how would I go about placing image one on top of image two or merge, with basic PHP? I have tried something such as watermarking, but it doesn't seem to be working.
例如......我将如何使用基本的PHP将图像一放在图像二的顶部或合并？我尝试了诸如水印之类的东西，但它似乎不起作用。
Image One
图一
Image Two
图二
...and have it turn into this? FINAL RESULT:
……变成这样了吗？最后结果：
回答by homework
I got it working from one I made.
我从我制作的一个开始工作。
<?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);
?>
回答by Crozin
Question is about merging two images, however in this specified case you shouldn't do that. You should put Content Image(ie. cover) into <img />tag, and Style Imageinto CSS, why?
问题是关于合并两个图像，但是在这种指定的情况下，您不应该这样做。您应该将内容图像（即封面）放入<img />标签，并将样式图像放入 CSS，为什么？
- As I said the cover belongs to the contentof the document, while that vinyl record and shadow are just a part of the page styles.
- Such separation is much more convenient to use. User can easily copy that image. It's easier to index by web-spiders.
- Finally, it's much easier to maintain.
- 正如我所说，封面属于文档的内容，而黑胶唱片和阴影只是页面样式的一部分。
- 这种分离使用起来要方便得多。用户可以轻松复制该图像。通过网络蜘蛛索引更容易。
- 最后，它更容易维护。
So use a very simple code:
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;
}
回答by imal hasaranga perera
ImageArtistis a pure gd wrapper authored by me, this enables you to do complex image manipulations insanely easy, for your question solution can be done using very few steps using this powerful library.
ImageArtist是我编写的纯 gd 包装器，这使您可以非常轻松地进行复杂的图像操作，因为使用这个强大的库，只需很少的步骤即可完成您的问题解决方案。
here is a sample code.
这是一个示例代码。
$img1 = new Image("./cover.jpg");
$img2 = new Image("./box.png");
$img2->merge($img1,9,9);
$img2->save("./merged.png",IMAGETYPE_PNG);
This is how my result looks like.
这就是我的结果的样子。
回答by lingeshram
You can try my function for merging images horizontally or vertically without changing image ratio. just copy paste will work.
你可以试试我的功能，在不改变图像比例的情况下水平或垂直合并图像。只需复制粘贴即可。
function merge($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
回答by slim
Use the GD library or ImageMagick. I googled 'PHP GD merge images' and got several articles on doing this. In the past what I've done is create a large blank image, and then used imagecopymerge() to paste those images into my original blank one. Check out the articles on google you'll find some source code you can start using right away.
使用 GD 库或 ImageMagick。我在谷歌上搜索了“PHP GD 合并图像”并获得了几篇关于这样做的文章。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，您会发现一些可以立即开始使用的源代码。
回答by Alex Howansky
You can do this with the ImageMagickextension. I'm guessing that the combineImages() method will do what you want.
您可以使用ImageMagick扩展程序执行此操作。我猜 combineImages() 方法会做你想要的。
回答by Joel
The GD Image Manipulation Library in PHP is probably the best for working with images in PHP. Try one of the imagecopy functions (imagecopy, imagecopymerge, ...). Each of them combine 2 images in different ways. See the php documentation on imagecopyfor more information.
PHP 中的 GD 图像处理库可能是处理 PHP 图像的最佳选择。尝试其中一种图像复制功能（imagecopy、imagecopymerge 等）。它们中的每一个都以不同的方式组合 2 个图像。有关更多信息，请参阅imagecopy 上的php 文档。
回答by ajmirani
Mergertwo image png and jpg/png [Image Masking]
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);
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);
}
