/yii2images/images/image-by-item-and-alias?item=Product1&dirtyAlias=b6e73413ff-1_50x50.jpg

<?php $imageOne = $model->getImage(); ?>

<?= DetailView::widget([
    'model' => $model,
    'attributes' => [
        'id',
        'title',
        'alias',
        'price',
        [
            'attribute' => 'imageOne',
            'value' => '<img src="' . $imageOne->getUrl('50x50') . '">',
            'format' => 'raw',
        ],
        'status',
        'frontpage',
        'primary_category',
        'sku',
        'short_desc:ntext',
        'full_desc:html',
    ],
]) ?>

'urlManager' => [
    'enablePrettyUrl' => true,
    'showScriptName' => false,
    'enableStrictParsing' => false,
    'rules' => [
        'category/<alias>/page-<page:d+>' => 'category/view',
        'category/<alias>' => 'category/view',
        'product/<id:d+>' => 'product/view',
        'page/<alias>' => 'page/view',
        'search' => 'category/search',
    ],
],

'as access' => [
...
'yii2images/*',
],

'image' => 'yii2images/images/image-by-item-and-alias',