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faster detection less false positive

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Former-commit-id: 501de9bca4c20600fe1e6250e82143f0b0d6ade3
This commit is contained in:
wisc
2016-01-10 18:42:55 +01:00
parent ac86a779b0
commit 4bc11548b4
3 changed files with 8 additions and 64 deletions
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17
libsrc/blackborder/BlackBorderProcessor.cpp
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@@ -51,8 +51,7 @@ bool BlackBorderProcessor::updateBorder(const BlackBorder & newDetectedBorder)
if (newDetectedBorder.unknown)
{
// apply the unknown border if we consistently can't determine a border
// if (_consistentCnt == _unknownSwitchCnt)
if (_consistentCnt >= _unknownSwitchCnt)
if (_consistentCnt == _unknownSwitchCnt)
{
_currentBorder = newDetectedBorder;
borderChanged = true;
@@ -61,8 +60,7 @@ bool BlackBorderProcessor::updateBorder(const BlackBorder & newDetectedBorder)
else
{
// apply the detected border if it has been detected consistently
// if (_currentBorder.unknown || _consistentCnt == _borderSwitchCnt)
if (_currentBorder.unknown || _consistentCnt >= _borderSwitchCnt)
if (_currentBorder.unknown || _consistentCnt == _borderSwitchCnt)
{
_currentBorder = newDetectedBorder;
borderChanged = true;
@@ -70,17 +68,16 @@ bool BlackBorderProcessor::updateBorder(const BlackBorder & newDetectedBorder)
else
{
bool stable = (_consistentCnt >= 10) || (_inconsistentCnt >=30 );
//more then A consistent seems like a new size not only a short flicker
//more then B inconsistent seems like the image is changing a lot and we need to set smaller border
// apply smaller borders immediately
// if (newDetectedBorder.verticalSize < _currentBorder.verticalSize)
if ( (newDetectedBorder.verticalSize < _currentBorder.verticalSize) && (stable) )// almost immediatly - avoid switching for "abnormal" frames
//more then 10 consistent seems like a new size not only a short flicker
//more then 30 inconsistent seems like the image is changing a lot and we need to set smaller border
// apply smaller borders (almost) immediately -> avoid switching for "abnormal" frames
if ( (newDetectedBorder.verticalSize < _currentBorder.verticalSize) && (stable) )
{
_currentBorder.verticalSize = newDetectedBorder.verticalSize;
borderChanged = true;
}
// if (newDetectedBorder.horizontalSize < _currentBorder.horizontalSize)
if ( (newDetectedBorder.horizontalSize < _currentBorder.horizontalSize) && (stable) )
{
_currentBorder.horizontalSize = newDetectedBorder.horizontalSize;