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Eliminate array copy in NormalizeOp #14

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Eliminate array copy in NormalizeOp #14

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8 changes: 4 additions & 4 deletions ...orflow_lite_support/java/src/java/org/tensorflow/lite/support/common/ops/NormalizeOp.java
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Original file line number Diff line number Diff line change
Expand Up @@ -141,11 +141,11 @@ public TensorBuffer apply(@NonNull TensorBuffer input) {
SupportPreconditions.checkArgument(
numChannels == 1 || (shape.length != 0 && shape[shape.length - 1] == numChannels),
"Number of means (stddevs) is not same with number of channels (size of last axis).");
// TODO(136750944): Eliminate the array copy here.
float[] values = input.getFloatArray();
int flatSize = input.getFlatSize();
float[] values = new float[flatSize];
int j = 0;
for (int i = 0; i < values.length; i++) {
values[i] = (values[i] - mean[j]) / stddev[j];
for (int i = 0; i < flatSize; i++) {
values[i] = (input.getFloatValue(i) - mean[j]) / stddev[j];
j = (j + 1) % numChannels;
}
TensorBuffer output;
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