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Fix crash, add assert and test

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arnaudbrejeon
2019-07-02 09:56:31 -07:00
parent 69560588fe
commit a37201abee
2 changed files with 17 additions and 1 deletions
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modules/imgproc/src/connectedcomponents.cpp
+3 -1
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@@ -2542,7 +2542,8 @@ namespace cv{
//Array used to store info and labeled pixel by each thread.
//Different threads affect different memory location of chunksSizeAndLabels
int *chunksSizeAndLabels = (int *)cv::fastMalloc(h * sizeof(int));
const int chunksSizeAndLabelsSize = h + 1;
int *chunksSizeAndLabels = (int *)cv::fastMalloc(chunksSizeAndLabelsSize * sizeof(int));
//Tree of labels
LabelT *P = (LabelT *)cv::fastMalloc(Plength * sizeof(LabelT));
@@ -2561,6 +2562,7 @@ namespace cv{
LabelT nLabels = 1;
for (int i = 0; i < h; i = chunksSizeAndLabels[i]){
CV_Assert(i + 1 < chunksSizeAndLabelsSize);
flattenL(P, LabelT((i + 1) / 2) * LabelT((w + 1) / 2) + 1, chunksSizeAndLabels[i + 1], nLabels);
}