mudhorn/zxing
1
0
Fork 0
mirror of https://github.com/zxing/zxing.git synced 2025-01-12 11:47:26 -08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Minor performance improvements to HybridBinarizer (#762)

Browse source
This commit is contained in:
David Sanders 2017-02-27 11:21:59 -07:00 committed by Sean Owen
parent 6546dc5863
commit 8d12dc4155
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
core/src/main/java/com/google/zxing/common/HybridBinarizer.java
View file

@ -105,20 +105,20 @@ public final class HybridBinarizer extends GlobalHistogramBinarizer {
int height,
int[][] blackPoints,
BitMatrix matrix) {
int maxYOffset = height - BLOCK_SIZE;
int maxXOffset = width - BLOCK_SIZE;
for (int y = 0; y < subHeight; y++) {
int yoffset = y << BLOCK_SIZE_POWER;
int maxYOffset = height - BLOCK_SIZE;
if (yoffset > maxYOffset) {
yoffset = maxYOffset;
}
int top = cap(y, 2, subHeight - 3);
for (int x = 0; x < subWidth; x++) {
int xoffset = x << BLOCK_SIZE_POWER;
int maxXOffset = width - BLOCK_SIZE;
if (xoffset > maxXOffset) {
xoffset = maxXOffset;
}
int left = cap(x, 2, subWidth - 3);
int top = cap(y, 2, subHeight - 3);
int sum = 0;
for (int z = -2; z <= 2; z++) {
int[] blackRow = blackPoints[top + z];
@ -163,16 +163,16 @@ public final class HybridBinarizer extends GlobalHistogramBinarizer {
int subHeight,
int width,
int height) {
int maxYOffset = height - BLOCK_SIZE;
int maxXOffset = width - BLOCK_SIZE;
int[][] blackPoints = new int[subHeight][subWidth];
for (int y = 0; y < subHeight; y++) {
int yoffset = y << BLOCK_SIZE_POWER;
int maxYOffset = height - BLOCK_SIZE;
if (yoffset > maxYOffset) {
yoffset = maxYOffset;
}
for (int x = 0; x < subWidth; x++) {
int xoffset = x << BLOCK_SIZE_POWER;
int maxXOffset = width - BLOCK_SIZE;
if (xoffset > maxXOffset) {
xoffset = maxXOffset;
}