Vertical camera feed to HAAR face tracker?

kkkkkkkk · February 2, 2018, 9:49pm

Hi,

is there a way to make ofxCv::ObjectFinder detect faces with haar in a 90˚ angle way?

basically rotate the detection 90 cw or ccw

kind regards

bakercp · February 3, 2018, 9:47pm

Maybe easiest to just rotate your incoming image?

http://openframeworks.cc/documentation/graphics/ofPixels/#show_rotate90

github.com

openframeworks/openFrameworks/blob/master/libs/openFrameworks/graphics/ofPixels.cpp#L1141


				}
				srcPixels += strideSrc;
				dstPixels += channels;
			}
		}
	}
}


//----------------------------------------------------------------------
template<typename PixelType>
void ofPixels_<PixelType>::rotate90(int nClockwiseRotations){
	size_t channels = channelsFromPixelFormat(pixelFormat);


	if (bAllocated == false || channels==0){
		return;
	}


	// first, figure out which type of rotation we have
	int rotation = nClockwiseRotations;
	while (rotation < 0){
		rotation+=4;

charli_e · February 5, 2018, 8:32am

Check ofxCoreImageDetector, allows you angle face detection and tracker,
also smile detection

kkkkkkkk · February 27, 2018, 6:31am

Thanks guys, @charli_e @bakercp both solutions worked out great.