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    Resize Product Image in Magento 2

    Today we are discussing how to resize the product image in Magento 2.
    To get this you can use the following code:

    <?php
    /**
     *
     * @var \Magento\Catalog\Model\ProductRepository
     */
    protected $_productRepository;
    
    /**
     *
     * @var \Magento\Catalog\Helper\Image
     */
    protected $_productImageHelper;
         
    /**
     * @param \Magento\Backend\Block\Template\Context $context
     * @param \Magento\Catalog\Model\ProductRepository $productRepository
     * @param \Magento\Catalog\Helper\Image $productImageHelper
     * @param array $data
     */
    public function __construct(
            \Magento\Backend\Block\Template\Context $context,        
            \Magento\Catalog\Model\ProductRepository $productRepository,
            \Magento\Catalog\Helper\Image $productImageHelper,
            array $data = []
        )
        {
            $this->_productRepository = $productRepository;
            $this->_productImageHelper = $productImageHelper;
            parent::__construct($context, $data);
        }
        
        /**
         * resize of the image
         * @see \Magento\Catalog\Model\Product\Image
         * @param int $width
         * @param int $height
         * @return $this
         */
        public function resizeImage($id, $image_type, $width, $height = null)
        {
            $product = $this->_productRepository->getById($id);
            $resizedImage = $this->_productImageHelper->init($product, $image_type)
                                               ->constrainOnly(TRUE)
                                               ->keepAspectRatio(TRUE)
                                               ->keepTransparency(TRUE)
                                               ->keepFrame(FALSE)
                                               ->resize($width, $height);
            return $resizedImage;
        }
    
    

    Here, $_productRepository is an object of Magento\Catalog\Model\ProductRepository class and $_productImageHelper is an object ofMagento\Catalog\Helper\Image class.

    And in the Function resizeImage, there are four parameters $id this is id of the product, $image_type that can “product_base_image” or “product_small_image”,”product_thumbnail_image” and $width, $height is width and height of the image respectively.

    constrainOnly-> By default it is False. but if we set True that means the image will not bigger than it was.
    keepAspectRatio-> By default it is True, that means image height and width will not be contorted.
    keepFrame-> keepFrame(False) will remove the background and set the image to desired width/height.
    keepTransparency-> By default it is True, that means the image will not lose transparency.

    Hope it will help you. Thank you.

    . . .
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