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Issue with using Region Of Interest Input for Haar face detection example?

Question asked by npai2 Employee on Mar 15, 2017
Latest reply on Mar 15, 2017 by npai2

The Haar face detection example in Image Processing Toolbox provides an option to run the detection on a smaller Region of Interest rather than the complete image. This can be done by modifying the macros

ADI_ROI_IMAGE_WIDTH, ADI_ROI_IMAGE_HEIGHT, and updating the variables X_OFF, Y_OFF macro in demo_application_haarfeatures.c at line 426.

However using this Region of Interest seems to miss detecting the faces which were earlier detected when the detection is run on the complete image. Is there a problem with using the Region of Interest for detection?