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How to remove convexity defects in a Sudoku square?

...Y = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {2, 0}], {0.02, 0.05}], mask]; lX = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {0, 2}], {0.02, 0.05}], mask]; I use connected component analysis again to extract the grid lines from these images. The g...
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java.net.ConnectException: localhost/127.0.0.1:8080 - Connection refused

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How to check whether a pandas DataFrame is empty?

... 505 You can use the attribute df.empty to check whether it's empty or not: if df.empty: print(...
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“CASE” statement within “WHERE” clause in SQL Server 2008

...ery which contains "CASE" statement within "WHERE" clause. But SQL Server 2008 is giving some errors while executing it. Can anyone please help me with the correct query? Here is the query: ...
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How to use if - else structure in a batch file?

... to d copy "%sourceFile%" "%destinationFile%" ) IF %F%==1 IF %C%==0 ( ::moving the file c to d move "%sourceFile%" "%destinationFile%" ) IF %F%==0 IF %C%==1 ( ::copying a directory c from d, /s: boş olanlar hariç, /e:boş olanlar dahil xcopy "%sourceCopyDirectory%" "...
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Shell equality operators (=, ==, -eq)

... guaranteed to work. $ a=foo $ [ "$a" = foo ]; echo "$?" # POSIX sh 0 $ [ "$a" == foo ]; echo "$?" # bash specific 0 $ [ "$a" -eq foo ]; echo "$?" # wrong -bash: [: foo: integer expression expected 2 (Side note: Quote those variable expansions! Do not leave out the double quotes ab...
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?

... | edited May 9 '18 at 20:46 Software Engineer 12.6k44 gold badges4949 silver badges7878 bronze badges ...
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)

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Algorithm for Determining Tic Tac Toe Game Over

...; //check end conditions //check col for(int i = 0; i < n; i++){ if(board[x][i] != s) break; if(i == n-1){ //report win for s } } //check row for(int i = 0; i < n; i++){ ...
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Knight's Shortest Path on Chessboard

...ves are connected (value=1), and unavailable moves are disconnected (value=0), the sparse matrix would be like: (a1,b3)=1, (a1,c2)=1, ..... And the shortest path of two points in a graph can be found using http://en.wikipedia.org/wiki/Dijkstra's_algorithm Pseudo-code from wikipedia-page: func...