resize image without loss quality in magento 2

Question

I want to resize image without loss quality in magento 2 i used code

 $imageResize = $this->_imageFactory->create();
 $imageResize->open($absolutePath);
 $imageResize->constrainOnly(TRUE);
 $imageResize->keepTransparency(TRUE);
 $imageResize->keepFrame(FALSE);
 $imageResize->keepAspectRatio(TRUE);
 $imageResize->resize($width, $height);
    //destination folder                
 $destination = $imageResized;
    //save image    
 $imageResize->save($destination);

when i resize it reduce the quality of image as compare to original image. How can i resize without losing quality?

Answer 1

You can resize product image using below code.

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$productRepository = $objectManager->get('\Magento\Catalog\Model\ProductRepository');
$productImageHelper = $objectManager->get('\Magento\Catalog\Helper\Image');

$productId = 1; ///  change your product ID
$width = 150; /// Change as per your requirement
$height = 150; /// Change as per your requirement
$image_type = 'thumbnail';

$product = $productRepository->getById($productId);
$resizedImage = $productImageHelper->init($product, $image_type)
                                   ->constrainOnly(TRUE)
                                   ->keepAspectRatio(TRUE)
                                   ->keepTransparency(TRUE)
                                   ->keepFrame(FALSE)
                                   ->resize($width, $height);