do not use IHS

gdal_pansharpen.go

@@ -2,6 +2,9 @@ package imageproc
 
 import (
 	"image"
+	"os"
+	"os/exec"
+	"strings"
 
 	log "github.com/sirupsen/logrus"
 
@@ -78,3 +81,33 @@ func PansharpenIHS(panImage, mssImage gocv.Mat) gocv.Mat {
 
 	return fused16U
 }
+
+func GDALPansharpen(panTiff, mssTiff string) (string, error) {
+	fusedTIff := strings.Replace(mssTiff, "MSS", "FUS", 1)
+	// pansharpenCmd := exec.Command("gdal_pansharpen.py", "-w 0.6 -w 0.1 -w 0.3 -w 0 -b 3 -b 2 -b 1", panTiff, mssTiff, fusedTIff, "-r cubic", "-of GTiff")
+	pansharpenCmd := exec.Command("gdal_pansharpen.py",
+		"-w", "0.6", "-w", "0.1", "-w", "0.3", "-w", "0",
+		"-b", "3", "-b", "2", "-b", "1",
+		"-r", "cubic", "-of", "GTiff",
+		panTiff,
+		mssTiff,
+		fusedTIff)
+	log.Println("Run Command: ", pansharpenCmd.String())
+	pansharpenCmd.Stdout = os.Stdout
+	pansharpenCmd.Stderr = os.Stderr
+	return fusedTIff, pansharpenCmd.Run()
+}
+
+func GDALTranslate(srcTiff, dstJPG string) error {
+	if dstJPG == "" {
+		dstJPG = strings.TrimSuffix(srcTiff, ".tiff") + ".jpg"
+	}
+	// gdal_translate -of JPEG -outsize 50% 50% -r bilinear input.tif output.jpg
+	cmd := exec.Command("gdal_translate", "-of", "JPEG",
+		"-scale",
+		srcTiff, dstJPG)
+	log.Println("Run Command: ", cmd.String())
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}