What is the right way to convert this from .htaccess to nginx.conf..
##Return default placeholder image when image file on server not found
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteRule \.(gif|jpe?g|png) /image404.php [NC,L]
##Return default placeholder image when image file on server not found
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteRule \.(gif|jpe?g|png) /image404.php [NC,L]