PHP image crop from CSS Transform

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I am currently building a Image cropping tool for a client the front end allows users to upload and image and zoom in / out and pan the zoomed image until they are happy. , @hendr1x that sounds promising, how did you handle zooming on the images? i assume you cropped the image and then used the offset that imagemagick allows for panning? – tvance Oct 3 '13 at 18:35 , I had to do something similar and took the approach of handling all image manipulation server side (imagick - which I like a lot better than wideimage/gd) and then just load it via ajax. This way you don't have duplicate logic code sitting around. – hendr1x Oct 3 '13 at 18:31 ,This is all working fine, it starts to get complicated when i need to crop this image the tool uses css transforms to zoom in and out and handle the panning when i post this through to my PHP script i get an array such as this one:

This is all working fine, it starts to get complicated when i need to crop this image the tool uses css transforms to zoom in and out and handle the panning when i post this through to my PHP script i get an array such as this one:

(
   [0] => 0.4095092758326518[1] => 0[2] => 0[3] => 0.4095092758326518[4] => -1257.469970703125[5] => -441.6499938964844
)
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Using object-fit on the image.,The object-fit CSS property can be used to easily crop images. It can have five values, but cover is the most suitable. By setting object-fit: cover;, the aspect ratio of the image is preserved while still fitting into the size of its content box.,There are several ways to crop an image in CSS; however, the simplest and most effective of these are:,Consider this 480480480 x 240240240 pixel image of a puppy; it has been cropped using object-fit and adjusted using object-position. Experiment by changing its values and note the output:

Using object-fit

The object-fit CSS property can be used to easily crop images. It can have five values, but cover is the most suitable. By setting object-fit: cover;, the aspect ratio of the image is preserved while still fitting into the size of its content box.

object - fit: cover;
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What happens if an image is larger than its containing element?, The clip property lets you specify a rectangle to clip an absolutely positioned element. The rectangle is specified as four coordinates, all from the top-left corner of the element to be clipped.,If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:,Your message has been sent to W3Schools.

What happens if an image is larger than its containing element?

The clip property lets you specify a rectangle to clip an absolutely positioned element. The rectangle is specified as four coordinates, all from the top-left corner of the element to be clipped.

clip
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jQuery Image Carousel,How to Crop Image using jQuery and PHP,jQuery Image Slideshow,Upload and Crop Image using PHP and jQuery

This is the initial page that loads the original image. The user can select and manage crop boundary by using the mouse drag events. This page contains the crop button on clicking of which the jQuery script will be executed to prepare cropped image output (using PHP) to show it to the browser.

<html>
<head>
<title>How to Crop Image using jQuery</title>
<link rel="stylesheet" href="jquery.Jcrop.min.css" type="text/css" />
<script src="jquery.min.js"></script>
<script src="jquery.Jcrop.min.js"></script>

<style>
body {
    width: 550px;
    font-family: Arial;
}

input#crop {
    padding: 5px 25px 5px 25px;
    background: lightseagreen;
    border: #485c61 1px solid;
    color: #FFF;
    visibility: hidden;
}

#cropped_img {
    margin-top: 40px;
}
</style>
</head>
<body>
    <div>
        <img src="img.jpg" id="cropbox" class="img" /><br />
    </div>
    <div id="btn">
        <input type='button' id="crop" value='CROP'>
    </div>
    <div>
        <img src="#" id="cropped_img" style="display: none;">
    </div>

</body>
</html>
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The imagecrop() function is an inbuilt function in PHP which is used to crop an image to the given rectangle. This function crops an image to the given rectangular area and returns the resulting image. The given image is not modified.,PHP | imagecrop() Function,PHP | imagearc() Function,Below programs illustrate the imagecrop() function in PHP:

Syntax:

resource imagecrop($image, $rect)
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None of the examples are superior so it's mostly a matter of personal preference which one to use. Though there are minor variations in browser support.,The smallest image size available should be used when using CSS cropping because it will affect image loading time.,All the solutions except SVG require the usage of a transparent placeholder image. It's possible to alter the aspect ratio of the thumbnail by changing the placeholder image size. The examples are built to show images in the grid.,Sometimes you don't have an option to crop images on the server-side so you need to do the cropping in the browser instead. Here are a few examples of how to create cropped image thumbnails using CSS only. All the examples are responsive and work for most image aspect ratios. Cropped images are scaled and centered to maximize the visible area of the image. Notes about browser support and other limitations are marked below.

HTML

<div class="image-grid">
   <a href="#" class="image-bg" style="background-image:url(https://url.to.image/image.jpg)">
      <img class="image-bg-placeholder" src="https://url.to.image/placeholder.png" alt="" />
      <img class="image-bg-img sr-only" src="https://url.to.image/image.jpg" alt="Cropped image as a background example" />
   </a>
</div>
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There are many benefits of Cropping of image before upload image to server. ,Crop image will reduce image size and optimize image before uploading to the server.,Crop image will optimize image data before uploaded to the server.,Crop image will resize image as per required size while uploading on the server.

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