pansharpen

2024-05-27 18:14:03 +08:00
parent 8a15159d05
commit 106fc37aad
6 changed files with 351 additions and 202 deletions
--- a/output.go
+++ b/output.go
@@ -0,0 +1,153 @@
+package imageproc
+
+import (
+	"bufio"
+	"os"
+
+	"github.com/airbusgeo/godal"
+	log "github.com/sirupsen/logrus"
+	"gocv.io/x/gocv"
+)
+
+func (r *Registrator) SaveOriginalPanToGDALGTiff(tiffFile string) error {
+	return savePanToGDALGTiff(r.PanImage, tiffFile)
+}
+
+func (r *Registrator) SaveFilteredPanToGDALGTiff(tiffFile string) error {
+	img := PANFilter(r.PanImage)
+	img.ConvertTo(&img, gocv.MatTypeCV16U)
+	return savePanToGDALGTiff(img, tiffFile)
+}
+
+func savePanToGDALGTiff(pan gocv.Mat, tiffFile string) error {
+	log.Println("Saving PAN image to TIFF file:", tiffFile)
+
+	width := pan.Rows()
+	height := pan.Cols()
+
+	ds, err := godal.Create(godal.GTiff, tiffFile, 1, godal.UInt16, width, height)
+	if err != nil {
+		log.Error("Error creating TIFF file: ", err)
+		return err
+	}
+	defer ds.Close()
+
+	setGeoTransform(ds, 0, 0, float64(width), float64(height), 1.25)
+	ds.SetMetadata("NBITS", "16")
+
+	// 将通道的数据转换为uint16数组
+	data := make([]uint16, width*height)
+	for y := 0; y < height; y++ {
+		for x := 0; x < width; x++ {
+			data[y*width+x] = uint16(pan.GetShortAt(y, x))
+		}
+	}
+
+	band := ds.Bands()[0]
+	err = band.IO(godal.IOWrite,
+		0, 0,
+		data,
+		width, height,
+		godal.PixelSpacing(2),
+		godal.LineSpacing(width*2))
+	if err != nil {
+		log.Error("Failed to write data to band:", err)
+		return err
+	}
+
+	log.Info("Saved pan image to ", tiffFile)
+
+	return nil
+}
+
+func (r *Registrator) SaveRegisteredMssToGDALGTiff(tiffFile string) error {
+	width := r.MssWidth
+	height := r.MssHeight
+
+	// 创建合并后的图像（RGBIR）
+	r.rgbirImage = gocv.NewMatWithSize(height, width, gocv.MatTypeCV16UC4) // 4通道，16位
+
+	for y := 0; y < height; y++ {
+		for x := 0; x < width; x++ {
+			blue := r.registeredMssImages[0].GetShortAt(y, x)
+			green := r.registeredMssImages[1].GetShortAt(y, x)
+			red := r.registeredMssImages[2].GetShortAt(y, x)
+			ir := r.registeredMssImages[3].GetShortAt(y, x)
+			r.rgbirImage.SetShortAt(y, x*4+0, blue)
+			r.rgbirImage.SetShortAt(y, x*4+1, green)
+			r.rgbirImage.SetShortAt(y, x*4+2, red)
+			r.rgbirImage.SetShortAt(y, x*4+3, ir)
+		}
+	}
+
+	return SaveBGRToGDALGTiff(r.rgbirImage, 4, 5, tiffFile)
+}
+
+func (r *Registrator) SavePansharpenedToGDALGTiff(tiffFile string) error {
+	ihsImage := PansharpenIHS(r.PanImage, r.rgbirImage)
+	return SaveBGRToGDALGTiff(ihsImage, 3, 1.25, tiffFile)
+}
+
+func SaveBGRToGDALGTiff(bgr gocv.Mat, bands int, resolution float64, tiffFile string) error {
+	log.Println("Saving BGR to TIFF file:", tiffFile)
+
+	width := bgr.Cols()
+	height := bgr.Rows()
+
+	// 创建一个二维切片来存储图像数据
+	data := make([][]uint16, bands)
+	for i := range data {
+		data[i] = make([]uint16, width*height)
+	}
+
+	// 从gocv.Mat中提取数据
+	for y := 0; y < height; y++ {
+		for x := 0; x < width; x++ {
+			for b := 0; b < bands; b++ {
+				data[b][y*width+x] = uint16(bgr.GetShortAt(y, x*bands+b))
+			}
+		}
+	}
+
+	ds, err := godal.Create(godal.GTiff,
+		tiffFile,
+		bands,
+		godal.UInt16,
+		width, height)
+	if err != nil {
+		log.Error("Error creating TIFF file: ", err)
+		return err
+	}
+	defer ds.Close()
+
+	setGeoTransform(ds, 0, 0, float64(width), float64(height), resolution)
+
+	for b := 0; b < bands; b++ {
+		band := ds.Bands()[b]
+		err := band.IO(godal.IOWrite,
+			0, 0,
+			data[b],
+			width, height,
+			godal.PixelSpacing(2),
+			godal.LineSpacing(width*2))
+		if err != nil {
+			log.Error("Failed to write data to band:", err)
+			return err
+		}
+	}
+
+	log.Info("Saved registered mss to ", tiffFile)
+
+	return nil
+}
+
+func (r *Registrator) BytesToRaw(mssData []byte, filePath string) error {
+	f, err := os.OpenFile(filePath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0777)
+	if err != nil {
+		return err
+	}
+	w := bufio.NewWriter(f)
+	w.Write(mssData)
+
+	return nil
+}