内存使用优化

pkg/producer/image_registration.go

@@ -161,6 +161,7 @@ func (r *Registrator) CalcDownPhaseCorrelation() error {
 
 	// 将PAN将采样作为轮廓匹配基准图像
 	downsampledPanImage := gocv.NewMat()
+	defer downsampledPanImage.Close()
 	gocv.Resize(r.PanImage, &downsampledPanImage,
 		image.Point{X: r.MssWidth, Y: r.MssHeight}, 0, 0, gocv.InterpolationCubic)
 	log.Println("down sampled PAN images size:", downsampledPanImage.Size())
@@ -385,6 +386,9 @@ func (r *Registrator) DoCoRegistration() error {
 			gocv.InterpolationCubic,
 			gocv.BorderConstant,
 			color.RGBA{0, 0, 0, 0})
+
+		mapX.Close()
+		mapY.Close()
 	}
 
 	// 裁掉末尾的的 MSS 480 行 和 PAN 的 480*4 行