Laravel – Grayscale Image Generate Example from scratch

Original Image:

Grayscale Image:

Step 1: Install Laravel 5 Application

In this step, if you haven’t laravel 5 application setup then we have to get fresh laravel 5 application. So run bellow command and get clean fresh laravel 5 application.

composer create-project --prefer-dist laravel/laravel blog

Step 2: Install Intervention Package

In this step we will install intervention/image for generate grayscale image. this package through we can generate grayscale image for our project. so first fire bellow command in your cmd or terminal:

composer require intervention/image

Now we need to add provider path and alias path in config/app.php file so open that file and add bellow code.

config/app.php

return [
	......
	$provides => [
		......
		......,
		'InterventionImageImageServiceProvider'
	],
	$aliases => [
		.....
		.....,
		'Image' => 'InterventionImageFacadesImage'
	]
]

Step 3: Add Route

In second step we will add routes and controller file so first add bellow route in your routes.php file.

routes/web.php

Route::get('grayscaleImage', 'ImageController@grayscaleImage');
Route::post('grayscaleImagePost',['as'=>'grayscaleImagePost','uses'=>'ImageController@grayscaleImagePost']);

Step 4: Add Controller

Now require to create new ImageController for image uploading and make grayscale image so first run bellow command :

php artisan make:controller ImageController

After this command you can find ImageController.php file in your app/Http/Controllers directory. open ImageController.php file and put bellow code in that file.

app/Http/Controllers/ImageController.php

<?php

namespace AppHttpControllers;

use IlluminateHttpRequest;
use AppHttpRequests;
use Image;

class ImageController extends Controller
{

	/**
     * Show the form for creating a new resource.
     *
     * @return IlluminateHttpResponse
     */
    public function grayscaleImage()
    {
    	return view('grayscaleImage');
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return IlluminateHttpResponse
     */
    public function grayscaleImagePost(Request $request)
    {
	    $this->validate($request, [
	    	'title' => 'required',
            'image' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
        ]);

        $image = $request->file('image');
        $input['imagename'] = time().'.'.$image->getClientOriginalExtension();

        $destinationPath = public_path('/images');
        $img = Image::make($image->getRealPath());
        $img->greyscale()->save($destinationPath.'/'.$input['imagename']);

        /*
			Write Your Insert data code
        */

        return back()
        	->with('success','Image Upload successful')
        	->with('imageName',$input['imagename']);
    }

}

Step 5: Blade and Create Upload directory

Ok, in this last step we will create grayscaleImage.blade.php file for photo upload form and manage error message and also success message. So first create grayscaleImage.blade.php file and put bellow code:

resources/views/grayscaleImage.blade.php

@extends('layouts.app')

@section('content')

<div >
<h1>Grayscale Image Uploading Demo</h1>

@if (count($errors) > 0)
	<div >
		<strong>Whoops!</strong> There were some problems with your input.<br><br>
		<ul>
			@foreach ($errors->all() as $error)
				<li>{{ $error }}</li>
			@endforeach
		</ul>
	</div>
@endif

@if ($message = Session::get('success'))
<div >
	<button type="button"  data-dismiss="alert">×</button>	
    <strong>{{ $message }}</strong>
</div>

<div >
	<div >
		<strong>Grayscale Image:</strong>
		<br/>
		<img src="/images/{{ Session::get('imageName') }}" width="500px" />
	</div>
</div>
@endif

{!! Form::open(array('route' => 'grayscaleImagePost','enctype' => 'multipart/form-data')) !!}
	<div >
		<div >
			<strong>Add Title:</strong>
			{!! Form::text('title', null,array('class' => 'form-control','placeholder'=>'Add Title')) !!}
		</div>

		<div >
			<strong>Add Image:</strong>
			{!! Form::file('image', array('class' => 'image')) !!}
		</div>

		<div >
			<br/>
			<button type="submit" >Upload Image</button>
		</div>

	</div>
{!! Form::close() !!}

</div>

@endsection

Ok, at last create directory in your public folder images and please give permission to that folder and check….

Now we are ready to run our example so run bellow command for quick run:

php artisan serve

Now you can open bellow URL on your browser:

http://localhost:8000/grayscaleImage

I hope it can help you…