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Merge pull request #23108 from crackwitz:issue-23107

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Usage of imread(): magic number 0, unchecked result

* docs: rewrite 0/1 to IMREAD_GRAYSCALE/IMREAD_COLOR in imread()

* samples, apps: rewrite 0/1 to IMREAD_GRAYSCALE/IMREAD_COLOR in imread()

* tests: rewrite 0/1 to IMREAD_GRAYSCALE/IMREAD_COLOR in imread()

* doc/py_tutorials: check imread() result
This commit is contained in:
Christoph Rackwitz
2023-01-09 01:55:31 -08:00
committed by GitHub
parent 7b7774476e
commit a64b51dd94
57 changed files with 129 additions and 74 deletions
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samples/cpp/tutorial_code/snippets/imgproc_HoughLinesP.cpp
+1 -1
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@@ -7,7 +7,7 @@ using namespace std;
int main(int argc, char** argv)
{
Mat src, dst, color_dst;
if( argc != 2 || !(src=imread(argv[1], 0)).data)
if( argc != 2 || !(src=imread(argv[1], IMREAD_GRAYSCALE)).data)
return -1;
Canny( src, dst, 50, 200, 3 );