Avoid HOGDescriptor with sigma = 0

gadcam · web-flow · commit d5e64f4eb2bf · 2017-08-19T15:03:16.000+02:00
Solve opencv#9307.
diff --git a/modules/objdetect/src/hog.cpp b/modules/objdetect/src/hog.cpp
@@ -100,7 +100,7 @@ size_t HOGDescriptor::getDescriptorSize() const
 
 double HOGDescriptor::getWinSigma() const
 {
-    return winSigma >= 0 ? winSigma : (blockSize.width + blockSize.height)/8.;
+    return winSigma > 0 ? winSigma : (blockSize.width + blockSize.height)/8.;
 }
 
 bool HOGDescriptor::checkDetectorSize() const

Original file line number	Diff line number	Diff line change
`@@ -100,7 +100,7 @@ size_t HOGDescriptor::getDescriptorSize() const`
`100`	`100`
`101`	`101`	`double HOGDescriptor::getWinSigma() const`
`102`	`102`	`{`
`103`		`- return winSigma >= 0 ? winSigma : (blockSize.width + blockSize.height)/8.;`
	`103`	`+ return winSigma > 0 ? winSigma : (blockSize.width + blockSize.height)/8.;`
`104`	`104`	`}`
`105`	`105`
`106`	`106`	`bool HOGDescriptor::checkDetectorSize() const`