// TODO maybe we should add missing codewords to store the correct row number to make
// finding row numbers for other columns easier
// use row height count to make detection of invalid row numbers more reliable
int adjustIncompleteIndicatorColumnRowNumbers(BarcodeMetadata barcodeMetadata) {
BoundingBox boundingBox = getBoundingBox();
ResultPoint top = isLeft ? boundingBox.getTopLeft() : boundingBox.getTopRight();
ResultPoint bottom = isLeft ? boundingBox.getBottomLeft() : boundingBox.getBottomRight();
int firstRow = imageRowToCodewordIndex((int) top.getY());
int lastRow = imageRowToCodewordIndex((int) bottom.getY());
float averageRowHeight = (lastRow - firstRow) / (float) barcodeMetadata.getRowCount();
Codeword[] codewords = getCodewords();
int barcodeRow = -1;
int maxRowHeight = 1;
int currentRowHeight = 0;
for (int codewordsRow = firstRow; codewordsRow < lastRow; codewordsRow++) {
if (codewords[codewordsRow] == null) {
continue;
}
Codeword codeword = codewords[codewordsRow];
codeword.setRowNumberAsRowIndicatorColumn();
int rowDifference = codeword.getRowNumber() - barcodeRow;
// TODO improve handling with case where first row indicator doesn't start with 0
if (rowDifference == 0) {
currentRowHeight++;
} else if (rowDifference == 1) {
maxRowHeight = Math.max(maxRowHeight, currentRowHeight);
currentRowHeight = 1;
barcodeRow = codeword.getRowNumber();
} else if (codeword.getRowNumber() >= barcodeMetadata.getRowCount()) {
codewords[codewordsRow] = null;
} else {
barcodeRow = codeword.getRowNumber();
currentRowHeight = 1;
}
}
return (int) (averageRowHeight + 0.5);
}
// TODO implement properly
// TODO maybe we should add missing codewords to store the correct row number to make
// finding row numbers for other columns easier
// use row height count to make detection of invalid row numbers more reliable
int adjustCompleteIndicatorColumnRowNumbers(BarcodeMetadata barcodeMetadata) {
Codeword[] codewords = getCodewords();
setRowNumbers();
removeIncorrectCodewords(codewords, barcodeMetadata);
BoundingBox boundingBox = getBoundingBox();
ResultPoint top = isLeft ? boundingBox.getTopLeft() : boundingBox.getTopRight();
ResultPoint bottom = isLeft ? boundingBox.getBottomLeft() : boundingBox.getBottomRight();
int firstRow = imageRowToCodewordIndex((int) top.getY());
int lastRow = imageRowToCodewordIndex((int) bottom.getY());
// We need to be careful using the average row height. Barcode could be skewed so that we have
// smaller and
// taller rows
float averageRowHeight = (lastRow - firstRow) / (float) barcodeMetadata.getRowCount();
int barcodeRow = -1;
int maxRowHeight = 1;
int currentRowHeight = 0;
for (int codewordsRow = firstRow; codewordsRow < lastRow; codewordsRow++) {
if (codewords[codewordsRow] == null) {
continue;
}
Codeword codeword = codewords[codewordsRow];
// float expectedRowNumber = (codewordsRow - firstRow) / averageRowHeight;
// if (Math.abs(codeword.getRowNumber() - expectedRowNumber) > 2) {
// SimpleLog.log(LEVEL.WARNING,
// "Removing codeword, rowNumberSkew too high, codeword[" + codewordsRow + "]:
// Expected Row: " +
// expectedRowNumber + ", RealRow: " + codeword.getRowNumber() + ", value: " +
// codeword.getValue());
// codewords[codewordsRow] = null;
// }
int rowDifference = codeword.getRowNumber() - barcodeRow;
// TODO improve handling with case where first row indicator doesn't start with 0
if (rowDifference == 0) {
currentRowHeight++;
} else if (rowDifference == 1) {
maxRowHeight = Math.max(maxRowHeight, currentRowHeight);
currentRowHeight = 1;
barcodeRow = codeword.getRowNumber();
} else if (rowDifference < 0
|| codeword.getRowNumber() >= barcodeMetadata.getRowCount()
|| rowDifference > codewordsRow) {
codewords[codewordsRow] = null;
} else {
int checkedRows;
if (maxRowHeight > 2) {
checkedRows = (maxRowHeight - 2) * rowDifference;
} else {
checkedRows = rowDifference;
}
boolean closePreviousCodewordFound = checkedRows >= codewordsRow;
for (int i = 1; i <= checkedRows && !closePreviousCodewordFound; i++) {
// there must be (height * rowDifference) number of codewords missing. For now we assume
// height = 1.
// This should hopefully get rid of most problems already.
closePreviousCodewordFound = codewords[codewordsRow - i] != null;
}
if (closePreviousCodewordFound) {
codewords[codewordsRow] = null;
} else {
barcodeRow = codeword.getRowNumber();
currentRowHeight = 1;
}
}
}
return (int) (averageRowHeight + 0.5);
}
