int32_t
CBC_DetectionResultRowIndicatorColumn::adjustCompleteIndicatorColumnRowNumbers(
CBC_BarcodeMetadata barcodeMetadata) {
CFX_PtrArray* codewords = getCodewords();
setRowNumbers();
removeIncorrectCodewords(codewords, barcodeMetadata);
CBC_BoundingBox* boundingBox = getBoundingBox();
CBC_ResultPoint* top =
m_isLeft ? boundingBox->getTopLeft() : boundingBox->getTopRight();
CBC_ResultPoint* bottom =
m_isLeft ? boundingBox->getBottomLeft() : boundingBox->getBottomRight();
int32_t firstRow = imageRowToCodewordIndex((int32_t)top->GetY());
int32_t lastRow = imageRowToCodewordIndex((int32_t)bottom->GetY());
FX_FLOAT averageRowHeight =
(lastRow - firstRow) / (FX_FLOAT)barcodeMetadata.getRowCount();
int32_t barcodeRow = -1;
int32_t maxRowHeight = 1;
int32_t currentRowHeight = 0;
for (int32_t codewordsRow = firstRow; codewordsRow < lastRow;
codewordsRow++) {
if (codewords->GetAt(codewordsRow) == NULL) {
continue;
}
CBC_Codeword* codeword = (CBC_Codeword*)codewords->GetAt(codewordsRow);
int32_t rowDifference = codeword->getRowNumber() - barcodeRow;
if (rowDifference == 0) {
currentRowHeight++;
} else if (rowDifference == 1) {
maxRowHeight =
maxRowHeight > currentRowHeight ? maxRowHeight : currentRowHeight;
currentRowHeight = 1;
barcodeRow = codeword->getRowNumber();
} else if (rowDifference < 0) {
codewords->SetAt(codewordsRow, NULL);
} else if (codeword->getRowNumber() >= barcodeMetadata.getRowCount()) {
codewords->SetAt(codewordsRow, NULL);
} else if (rowDifference > codewordsRow) {
codewords->SetAt(codewordsRow, NULL);
} else {
int32_t checkedRows;
if (maxRowHeight > 2) {
checkedRows = (maxRowHeight - 2) * rowDifference;
} else {
checkedRows = rowDifference;
}
FX_BOOL closePreviousCodewordFound = checkedRows >= codewordsRow;
for (int32_t i = 1; i <= checkedRows && !closePreviousCodewordFound;
i++) {
closePreviousCodewordFound = codewords->GetAt(codewordsRow - i) != NULL;
}
if (closePreviousCodewordFound) {
codewords->SetAt(codewordsRow, NULL);
} else {
barcodeRow = codeword->getRowNumber();
currentRowHeight = 1;
}
}
}
return (int32_t)(averageRowHeight + 0.5);
}
int32_t CBC_DetectionResultRowIndicatorColumn::
adjustIncompleteIndicatorColumnRowNumbers(
CBC_BarcodeMetadata barcodeMetadata) {
CBC_BoundingBox* boundingBox = getBoundingBox();
CBC_ResultPoint* top =
m_isLeft ? boundingBox->getTopLeft() : boundingBox->getTopRight();
CBC_ResultPoint* bottom =
m_isLeft ? boundingBox->getBottomLeft() : boundingBox->getBottomRight();
int32_t firstRow = imageRowToCodewordIndex((int32_t)top->GetY());
int32_t lastRow = imageRowToCodewordIndex((int32_t)bottom->GetY());
FX_FLOAT averageRowHeight =
(lastRow - firstRow) / (FX_FLOAT)barcodeMetadata.getRowCount();
CFX_PtrArray* codewords = getCodewords();
int32_t barcodeRow = -1;
int32_t maxRowHeight = 1;
int32_t currentRowHeight = 0;
for (int32_t codewordsRow = firstRow; codewordsRow < lastRow;
codewordsRow++) {
if (codewords->GetAt(codewordsRow) == NULL) {
continue;
}
CBC_Codeword* codeword = (CBC_Codeword*)codewords->GetAt(codewordsRow);
codeword->setRowNumberAsRowIndicatorColumn();
int32_t rowDifference = codeword->getRowNumber() - barcodeRow;
if (rowDifference == 0) {
currentRowHeight++;
} else if (rowDifference == 1) {
maxRowHeight =
maxRowHeight > currentRowHeight ? maxRowHeight : currentRowHeight;
currentRowHeight = 1;
barcodeRow = codeword->getRowNumber();
} else if (codeword->getRowNumber() >= barcodeMetadata.getRowCount()) {
codewords->SetAt(codewordsRow, NULL);
} else {
barcodeRow = codeword->getRowNumber();
currentRowHeight = 1;
}
}
return (int32_t)(averageRowHeight + 0.5);
}
CFX_PtrArray* CBC_Detector::findRowsWithPattern(CBC_CommonBitMatrix* matrix,
int32_t height,
int32_t width,
int32_t startRow,
int32_t startColumn,
int32_t* pattern,
int32_t patternLength) {
CFX_PtrArray* result = new CFX_PtrArray;
result->SetSize(4);
FX_BOOL found = FALSE;
CFX_Int32Array counters;
counters.SetSize(patternLength);
for (; startRow < height; startRow += ROW_STEP) {
CFX_Int32Array* loc =
findGuardPattern(matrix, startColumn, startRow, width, FALSE, pattern,
patternLength, counters);
if (loc != NULL) {
while (startRow > 0) {
CFX_Int32Array* previousRowLoc =
findGuardPattern(matrix, startColumn, --startRow, width, FALSE,
pattern, patternLength, counters);
if (previousRowLoc != NULL) {
delete loc;
loc = previousRowLoc;
} else {
startRow++;
break;
}
}
result->SetAt(
0, new CBC_ResultPoint((FX_FLOAT)loc->GetAt(0), (FX_FLOAT)startRow));
result->SetAt(
1, new CBC_ResultPoint((FX_FLOAT)loc->GetAt(1), (FX_FLOAT)startRow));
found = TRUE;
delete loc;
break;
}
}
int32_t stopRow = startRow + 1;
if (found) {
int32_t skippedRowCount = 0;
CFX_Int32Array previousRowLoc;
previousRowLoc.Add((int32_t)((CBC_ResultPoint*)result->GetAt(0))->GetX());
previousRowLoc.Add((int32_t)((CBC_ResultPoint*)result->GetAt(1))->GetX());
for (; stopRow < height; stopRow++) {
CFX_Int32Array* loc =
findGuardPattern(matrix, previousRowLoc[0], stopRow, width, FALSE,
pattern, patternLength, counters);
if (loc != NULL &&
abs(previousRowLoc[0] - loc->GetAt(0)) < MAX_PATTERN_DRIFT &&
abs(previousRowLoc[1] - loc->GetAt(1)) < MAX_PATTERN_DRIFT) {
previousRowLoc.Copy(*loc);
skippedRowCount = 0;
} else {
if (skippedRowCount > SKIPPED_ROW_COUNT_MAX) {
delete loc;
break;
} else {
skippedRowCount++;
}
}
delete loc;
}
stopRow -= skippedRowCount + 1;
result->SetAt(2, new CBC_ResultPoint((FX_FLOAT)previousRowLoc.GetAt(0),
(FX_FLOAT)stopRow));
result->SetAt(3, new CBC_ResultPoint((FX_FLOAT)previousRowLoc.GetAt(1),
(FX_FLOAT)stopRow));
}
if (stopRow - startRow < BARCODE_MIN_HEIGHT) {
for (int32_t i = 0; i < result->GetSize(); i++) {
result->SetAt(i, NULL);
}
}
return result;
}
