eZ\Publish\Core\Persistence\Legacy\Content\FieldValue\Converter\ImageConverter::toFieldValue PHP Method

    public function toFieldValue(StorageFieldValue $value, FieldValue $fieldValue)
    {
        if (empty($value->dataText)) {
            // Special case for anonymous user
            return;
        }
        $fieldValue->data = $this->parseLegacyXml($value->dataText);
    }