diff --git a/app/code/Magento/Catalog/Model/Product/Image.php b/app/code/Magento/Catalog/Model/Product/Image.php
index 7d8b464db3b34..b32abc1310498 100644
--- a/app/code/Magento/Catalog/Model/Product/Image.php
+++ b/app/code/Magento/Catalog/Model/Product/Image.php
@@ -278,7 +278,7 @@ public function getQuality()
      */
     public function setKeepAspectRatio($keep)
     {
-        $this->_keepAspectRatio = (bool)$keep;
+        $this->_keepAspectRatio = $keep && $keep !== 'false';
         return $this;
     }
 
@@ -288,7 +288,7 @@ public function setKeepAspectRatio($keep)
      */
     public function setKeepFrame($keep)
     {
-        $this->_keepFrame = (bool)$keep;
+        $this->_keepFrame = $keep && $keep !== 'false';
         return $this;
     }
 
@@ -298,7 +298,7 @@ public function setKeepFrame($keep)
      */
     public function setKeepTransparency($keep)
     {
-        $this->_keepTransparency = (bool)$keep;
+        $this->_keepTransparency = $keep && $keep !== 'false';
         return $this;
     }
 
@@ -308,7 +308,7 @@ public function setKeepTransparency($keep)
      */
     public function setConstrainOnly($flag)
     {
-        $this->_constrainOnly = (bool)$flag;
+        $this->_constrainOnly = $flag && $flag !== 'false';
         return $this;
     }