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Take more advantage of TRY_HARDER

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git-svn-id: https://zxing.googlecode.com/svn/trunk@233 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2008-02-25 23:22:01 +00:00
parent 1f442884aa
commit 3e5b13abeb
1 changed files with 5 additions and 2 deletions
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7
core/src/com/google/zxing/oned/AbstractOneDReader.java
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@ -40,6 +40,8 @@ public abstract class AbstractOneDReader implements OneDReader {
public final Result decode(MonochromeBitmapSource image, Hashtable hints) throws ReaderException {
boolean tryHarder = hints != null && hints.contains(DecodeHintType.TRY_HARDER);
int width = image.getWidth();
int height = image.getHeight();
@ -53,7 +55,8 @@ public abstract class AbstractOneDReader implements OneDReader {
// that moving up and down by about 1/16 of the image is pretty good.
int middle = height >> 1;
int rowStep = Math.max(1, height >> 4);
for (int x = 0; x < 7; x++) {
int maxLines = tryHarder ? 15 : 7;
for (int x = 0; x < maxLines; x++) {
int rowStepsAboveOrBelow = (x + 1) >> 1;
boolean isAbove = (x & 0x01) == 0; // i.e. is x even?
@ -68,7 +71,7 @@ public abstract class AbstractOneDReader implements OneDReader {
try {
return decodeRow(rowNumber, row, hints);
} catch (ReaderException re) {
if (hints != null && hints.contains(DecodeHintType.TRY_HARDER)) {
if (tryHarder) {
row.reverse(); // try scanning the row backwards
try {
return decodeRow(rowNumber, row, hints);