Retrieve the image saved in an Entity Record

The below method can be used to retrieve the image that is stored in an entity record.

        public static byte[] GetEntityImage(string entityName, Guid entityId, IOrganizationService service)
        {
            try
            {
                QueryExpression query = new QueryExpression(entityName);
                query.ColumnSet = new ColumnSet("entityimage");
                query.Criteria = new FilterExpression(LogicalOperator.And);
                query.Criteria.AddCondition(entityName + "id", ConditionOperator.Equal, entityId);
                EntityCollection collection = service.RetrieveMultiple(query);
                if (collection.Entities[0].Contains("entityimage"))
                {
                    return collection.Entities[0]["entityimage"] as byte[];
                }

            }
            catch (Exception ex)
            {
                //WriteErrorLog(entityName, ex.ToString(), service);
            }
            return null;
        }