Zhang-Suen thinning algorithm: Difference between revisions
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→{{header|Ruby}}
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=={{header|Ruby}}==
<lang ruby>
# Thinning RC
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return 0 if ng[1][1] == 0 or (ng[1][2] + ng[0][1] + ng[1+g][g]) == 3 or (ng[g][1+g] + ng[2][1] + ng[1][0]) == 3
t = -1; ng.each{|n| n.each{|g| t+=g}}; return 0 unless (2 <= t and t <= 6)
t = -1;
return 0 unless t==1 or t==2
@r=1
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