Chapter 2, Getting Started with OpenCV

  1. Name three Extra OpenCV modules, along with their usage.

The xfeatures2d module can be used to access additional feature detection algorithms. The face module can be used to include face analysis algorithms in OpenCV. The text module can be used to add OCR functionalities (Tesseract OCR) to OpenCV.

  1. What is the effect of building OpenCV 3 with the BUILD_opencv_world flag turned on?

Building OpenCV 3 with the BUILD_opencv_world flag will combine all binary library files, such as core, imcodecsand highgui, into a single world library.

  1. Using the ROI pixel access method described in this chapter, how can we construct a Mat class that can access the middle pixel, plus all of its neighboring pixels (the ...

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