Images getting corrupted on download

[MohammadMasood]

When I try to download images using FileSaver.SaveAs it is downloaded but cannot see image .

            var self = this;
            var url = this.getUrl(apiUrl, itemPath);		
            var deferred = $q.defer();
            self.inprocess = true;
            $http.get(url).success(function(data,status,headers) {
				var response = {
					content_type:headers('Content-Type'),
					data:data,
				};

				var data_cnt = new Blob([data], { type:response.content_type });
				FileSaver.saveAs(data_cnt, toFilename,false);
		
                deferred.resolve();
              
            }).error(function(data, code) {
                self.deferredHandler(data, deferred, code, $translate.instant('error_downloading'));
            })['finally'](function() {
                self.inprocess = false;
            });
            return deferred.promise;