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The type of Interpolation where the intensity of the FOUR neighbouring pixels is used to obtain intensity a new location is called ___________

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The type of Interpolation where the intensity of the FOUR neighbouring pixels is used to obtain intensity a new location is called ___________

(a) cubic interpolation

(b) nearest neighbour interpolation

(c) bilinear interpolation

(d) bicubic interpolation

I have been asked this question by my college professor while I was bunking the class.

This intriguing question originated from Image Sampling and Quantization topic in chapter Digital Image Fundamentals of Digital Image Processing

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Correct choice is (b) nearest neighbour interpolation

Easy explanation: Bilinear interpolation is where the FOUR neighbouring pixels is used to estimate intensity for a new location.

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