file/routes/web.php

<?php

use App\Image\Processor;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
use Jcupitt\Vips\Extend;
use Jcupitt\Vips\Image;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

Route::get('/image.{ext}', function (Request $request) {

    // // $request->dddd = 'tesst';
    // dump($request->);

    if (!isset($request->w) && !isset($request->h)) {
        $image = Image::thumbnail('../public/image.jpg', getimagesize('../public/image.jpg')[0]);
    }

    if ($request->r) {
        $rArray = explode(':', $request->r);

        if (isset($request->w) && !isset($request->h)) {
            $request->h = $request->w * $rArray[1];
            $request->w = $request->w * $rArray[0];
        }


        if (!isset($request->w) && isset($request->h)) {
            $request->h = $request->h * $rArray[1];
            $request->w = $request->h * $rArray[0];
        }
    }

    if (isset($request->w) && !isset($request->h)) {
        $image = Image::thumbnail('../public/image.jpg', $request->w, ['height' => getimagesize('../public/image.jpg')[1]]);
    }

    if (!isset($request->w) && isset($request->h)) {
        $image = Image::thumbnail('../public/image.jpg', getimagesize('../public/image.jpg')[0], ['height' => $request->h]);
    }

    if (isset($request->w) && isset($request->h) && !($request->canv == true)) {
        $image = Image::thumbnail('../public/image.jpg', $request->w, ['height' => $request->h, 'crop' => 'centre']);
    }

    if (isset($request->w) && isset($request->h) && $request->canv == true) {
        $image = Image::thumbnail('../public/image.jpg', $request->w, ['height' => $request->h]);
        $widthH = ($request->h - $image->height) / 2;
        $widthW = ($request->w - $image->width) / 2;
        $image = $image->embed(
            $widthW,
            $widthH,
            $request->w,
            $request->h,
            ['extend' => 'white']
        );
    }

    if (isset($request->brightness) || isset($request->saturation) || isset($request->hue)) {
        $image = Processor::brightness($image, isset($request->brightness) ? $request->brightness : 1.0, isset($request->saturation) ? $request->saturation : 1.0, isset($request->hue) ? $request->hue : 0.0);
    }

    if ($request->rotation) {
        $image = $image->rotate($request->rotation);
    }

    if ($request->flip == "h") {
        $image = $image->fliphor();
    }

    if ($request->flip == "v") {
        $image = $image->flipver();
    }

    if ($request->flip == "hv") {
        $image = $image->fliphor();
        $image = $image->flipver();
    }

    $image->writeToFile('image-modified.' . $request->ext, [
        'Q' => $request->q
    ]);

    return response()->file(public_path("image-modified." . $request->ext));
});