CV basics

Front

Which library is used for computer vision related tasks? Options: cvopen, opencv, copenv, opcven

Back

opencv

Front

Which command is used to install opencv? Options: pip install opencv, pip install cv2, pip install python-opencv, pip install opencv-python

Back

pip install opencv-python

Front

How do you import opencv library in python? Options: import opencv, import opencv-python, import cv2, import python-opencv

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import cv2

Front

How do you read an image using opencv? Options: cv2.read("filename"), cv2.readImage("filename"), cv2.imread("filename"), cv2.open("filename")

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cv2.imread("filename")

Front

How many channels does a grayscale image have?

Back

1

Front

Which channel format does opencv support for color images? Options: R,G,B, G,R,B, B,R,G, B,G,R

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B,G,R

Front

Which function is used to resize an image using opencv? Options: cv2.resize(), cv2.changeShape(), cv2.setRatio(), cv2.alter()

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cv2.resize()

Front

Which opencv function is used to draw text on an image? Options: cv2.drawText(), cv2.text(), cv2.putText(), cv2.write()

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cv2.putText()

Front

Which dataset is used to train the pretrained yolov8 object detection model? Options: PASCAL VOC, Human Pose, COCO, Warehouse

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COCO

Front

Consider each box is a pixel in an image. What should be 'A' and 'B' in the below line of code to get the blue rectangle as shown.
cv2.line(image, A , B , color, thickness)

Back

A: (0,0)
B: (5, 3)