From 2d25c746e20e50d9a20e31ccc4d2daf7698de6f8 Mon Sep 17 00:00:00 2001
From: Vojtech Moravec <vojtech.moravec.st@vsb.cz>
Date: Fri, 16 Oct 2020 13:57:34 +0200
Subject: [PATCH] Add option to not duplicate source vectors.
This change save A LOT OF memory.
---
.../cz/it4i/qcmp/quantization/vector/LBGVectorQuantizer.java | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/main/java/cz/it4i/qcmp/quantization/vector/LBGVectorQuantizer.java b/src/main/java/cz/it4i/qcmp/quantization/vector/LBGVectorQuantizer.java
index 0245ca6..86d93dc 100644
--- a/src/main/java/cz/it4i/qcmp/quantization/vector/LBGVectorQuantizer.java
+++ b/src/main/java/cz/it4i/qcmp/quantization/vector/LBGVectorQuantizer.java
@@ -35,7 +35,8 @@ public class LBGVectorQuantizer {
public LBGVectorQuantizer(final int[][] vectors,
final int codebookSize,
final int workerCount,
- final V3i vectorDimensions) {
+ final V3i vectorDimensions,
+ final boolean createCopyOfSrcVectors) {
assert (vectors.length > 0) : "No training vectors provided";
this.vectorDimensions = vectorDimensions;
@@ -44,7 +45,7 @@ public class LBGVectorQuantizer {
this.trainingVectors = new TrainingVector[vectors.length];
for (int i = 0; i < vectors.length; i++) {
- trainingVectors[i] = new TrainingVector(Arrays.copyOf(vectors[i], vectorSize));
+ trainingVectors[i] = new TrainingVector(createCopyOfSrcVectors ? Arrays.copyOf(vectors[i], vectorSize) : vectors[i]);
}
this.codebookSize = codebookSize;
--
GitLab