Hi @Nesan
In dispatcher rules section, you can apply the below rules to cache all the images with (.jpg, .jpeg and .png form) from /content location.
/0002 { /glob "/content/*.jpg" /type "allow" }
/0003 { /glob "/content/*.jpeg" /type "allow" }
/0004 { /glob "/content/*.png" /type "allow" }
Check the rules section:
https://experienceleague.adobe.com/docs/experience-manager-dispatcher/using/configuring/dispatcher-c...
Thanks!