Apply upsample by nearest neighbour replication to the following 8-bit greyscale image matrix that has order 2 x 2 to make it 4 x 4. In an 8-bit greyscale image, the 2 x 2 image re... Apply upsample by nearest neighbour replication to the following 8-bit greyscale image matrix that has order 2 x 2 to make it 4 x 4. In an 8-bit greyscale image, the 2 x 2 image region below is to be rescaled to occupy an area of 8 x 8 pixels using bilinear interpolation. In this new area, what's the value of the pixel at position (7,6)? Round your answer to be in N.
Understand the Problem
The first question asks for nearest neighbour replication to upsample a given 2x2 grayscale image matrix to a 4x4 matrix. The second question involves calculating the value of a pixel in an 8x8 area using linear interpolation based on the pixel values from a 2x2 image. Both tasks require understanding of image processing techniques.
Answer
88
The final answer is 88
Answer for screen readers
The final answer is 88
More Information
Bilinear interpolation calculates a weighted average of the four nearest pixel values, which smoothens the resized image.
Tips
Common mistakes include not applying the correct weights in the bilinear interpolation formula and rounding incorrectly.
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