If the pictures have been uploaded to a media category then no, the member can't change the view permissions as they are set in the ACP for each category.
Assuming though that the member has uploaded these pictures to an album they have created, then the permissions are set for the album rather than individual pictures. He can change the permissions using the "Change Permissions" link in the Album Permissions block on the right inside the album.
However, this link is only available if the "Change view permission of album by self" permission has been set to Allow in the ACP.