Laravel图像介入压缩 [英] Laravel image intervention compression

问题描述

我有一个脚本，可以通过干预来保存和缓存图像，并且可以100％工作

I have a script which saves and caches images with intervention, and it's working 100%

但是我试图弄清楚如何将75％的压缩率添加到jpg& png文件，但我不知道我会在这种情况下使用它。

However i am trying to work out how i can add 75% compression to jpg & png files, but i don't know i would apply it in this situation.

我不认为PNG文件可以与执行该操作的软件分开压缩，因此我不是很确定是否相同吗？

I didn't think PNG files could be compressed apart from software which does it, so im not really sure if its the same thing?

这里有一个压缩示例： http://image.intervention.io/api/save

There is an example of compression here: http://image.intervention.io/api/save

/* ////////////////////// IMAGES //////////////////////// */
Route::get( '/media/{size}/{crop}/{name}', function ( $size = null, $crop = null, $name = null ) {
    if ( ! is_null( $size ) and ! is_null( $name ) and ! is_null( $crop ) ) {
        $size = explode( 'x', $size );

        $hours = 48;
        $cache_length = $hours * 60;

        switch ( $crop ) {

            /*///////////////////////// no crop and change ratio */
            case "0":
                $cache_image = Image::cache( function ( $image ) use ( $size, $name ) {
                    return $image->make( url( '/uploads/' . $name ) )->resize( $size[0], $size[1] )->sharpen(5);
                }, $cache_length);
                break;

            /*///////////////////////// crop - NO upsize */
            default:
            case "1":
                $cache_image = Image::cache( function ( $image ) use ( $size, $name ) {
                    return $image->make( url( '/uploads/' . $name ) )->fit( $size[0], $size[1], function ( $constraint ) {
                        $constraint->upsize();
                    } )->sharpen(5);
                }, $cache_length );
                break;

            /*///////////////////////// crop - WITH upsize */
            case "2":
                $cache_image = Image::cache( function ( $image ) use ( $size, $name ) {
                    return $image->make( url( '/uploads/' . $name ) )->fit( $size[0], $size[1], function ( $constraint ) {
                        //$constraint->upsize();
                    } )->sharpen(5);
                }, $cache_length );
                break;

            /*///////////////////////// No crop & add borders */
            case "3":

                $cache_image = Image::cache( function ( $image ) use ( $size, $name ) {

                    $image->make( url( '/uploads/' . $name ) )->resize( $size[0], $size[1], function ( $constraint ) {
                        $constraint->aspectRatio();
                        $constraint->upsize();
                    } )->sharpen(5);

                    $image->resizeCanvas($size[0], $size[1], 'center', false, array(255, 255, 255, 0.0));

                    return $image;

                }, $cache_length );
                break;

            /*///////////////////////// No crop */
            case "4":
                $cache_image = Image::cache( function ( $image ) use ( $size, $name ) {

                    $image->make( url( '/uploads/' . $name ) )->resize( $size[0], $size[1], function ( $constraint ) {
                        $constraint->aspectRatio();
                        $constraint->upsize();
                    } )->sharpen(5);

                    //$image->resizeCanvas($size[0], $size[1], 'center', false, array(255, 255, 255, 0.0));

                    return $image;

                }, $cache_length );
                break;

        }

        return Response::make( $cache_image, 200, [ 'Content-Type' => 'image' ] )->setMaxAge(604800)->setPublic();

    } else {
        abort( 404 );
    }
} );

推荐答案

尝试 encode（） 方法，您可以在其中指定格式和 quality （对于 jpg ）。因此，每次使用缓存时，请尝试执行以下操作：

Try the encode() method, where you can specify the format and the quality (for jpg). So, everytime you use the cache, try to do this:

$cache_image = Image::cache(function ($image) use ($size, $name) {

    $image
        ->make(...)
        ->...        // any other call to image manipulation methods
        ->encode('jpg', 75);

    // ...

    return $image;
});

这篇关于Laravel图像介入压缩的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！