diff --git a/cmd/proc.go b/cmd/proc.go
index d5a7321..ef681a1 100644
--- a/cmd/proc.go
+++ b/cmd/proc.go
@@ -15,6 +15,8 @@ import (
 var (
 	params    producer.Params
 	saveStrip bool
+	doRRC     bool
+	lutDir    string
 )
 
 var procCmd = &cobra.Command{
@@ -44,7 +46,9 @@ var procCmd = &cobra.Command{
 		godal.RegisterAll()
 		os.MkdirAll(params.OutputDir, 0755)
 
-		reg.DoRRC()
+		if doRRC {
+			reg.DoRRC(lutDir)
+		}
 
 		if err := reg.DoPhaseCorrelation(); err != nil {
 			logrus.Fatal(err)
@@ -93,6 +97,8 @@ func init() {
 	procCmd.Flags().BoolVarP(&params.SubScenes, "sub-scenes", "", false, "process sub-scenes")
 	procCmd.Flags().BoolVarP(&saveStrip, "save-strip", "", false, "save original and registered images as GDAL GTiff")
 	procCmd.Flags().StringVarP(&paramsXML, "params", "x", "", "params xml file path")
+	procCmd.Flags().StringVarP(&lutDir, "lut", "l", "data/lut", "LUT directory")
+	procCmd.Flags().BoolVarP(&doRRC, "rrc", "", false, "do RRC")
 }
 
 func initParams() producer.Params {
diff --git a/pkg/producer/rrc.go b/pkg/producer/rrc.go
index dfcd259..f128b1d 100644
--- a/pkg/producer/rrc.go
+++ b/pkg/producer/rrc.go
@@ -2,14 +2,15 @@ package producer
 
 import (
 	"fmt"
+	"path/filepath"
 
 	"github.com/sirupsen/logrus"
 	"starwiz.cn/sjy01/image-proc/pkg/rrc"
 )
 
-func (r *Registrator) DoRRC() error {
-	logrus.Println("try to do RRC...")
-	lutPAN, err := rrc.LoadLUT("data/rrc/B0.LUT", 9344)
+func (r *Registrator) DoRRC(lutDir string) error {
+	logrus.Printf("try to do RRC [%s]...", lutDir)
+	lutPAN, err := rrc.LoadLUT(filepath.Join(lutDir, "B0.LUT"), 9344)
 	if err != nil {
 		logrus.Error("load pan gray table failed")
 		return err
@@ -23,7 +24,7 @@ func (r *Registrator) DoRRC() error {
 	}
 
 	for i := 0; i < 4; i++ {
-		lutMSS, err := rrc.LoadLUT(fmt.Sprintf("data/rrc/B%d.LUT", i+1), 2336)
+		lutMSS, err := rrc.LoadLUT(filepath.Join(lutDir, fmt.Sprintf("B%d.LUT", i+1)), 2336)
 		if err != nil {
 			logrus.Error("load mss gray table failed")
 			return err
diff --git a/pkg/rrc/rrc.go b/pkg/rrc/rrc.go
index 52d191f..3ea3865 100644
--- a/pkg/rrc/rrc.go
+++ b/pkg/rrc/rrc.go
@@ -97,7 +97,6 @@ func (rrc *RRC) StatisticalPAN(dsfile string) error {
 			log.Println("sum PAN histogram...")
 			rrc.Histograms[0].sum([]*ProbeHistogram{&hist})
 			hist.free()
-			printMemStats()
 			runtime.GC()
 			printMemStats()
 
@@ -177,7 +176,6 @@ func (rrc *RRC) StatisticalMSS(dsfile string) error {
 				log.Println("sum MSS histogram...")
 				rrc.Histograms[i+1].sum([]*ProbeHistogram{&hist})
 				hist.free()
-				printMemStats()
 				runtime.GC()
 				printMemStats()