Question

Suppose we have a 5 x 5 image.The pixels in the top row are numbered 0 through 4 left to right,the ones in the second row from the to are numbered 5 through 9 left to right, and so on. Suppose there is a 'T' in the middle. The horizontal bar is in the middle of the second row, and 3 pixels wide. The vertical bar is in the middle of the third column and is also 3 pixels wide. Only pixels of the 'T' are black, rest are white.
1 point
Suppose we flatten the image into an array(let's call it A, and it is indexed from 0) such that pixel number i goes into the array at index i. What is the index of a pixel in column a and row b? (Note that first row has a=0 and first column has b=0)
5 * j + i
5 * j * i
5 * i + j
5 * i + 5 * j
1 point
Which of the indices in the array correspond to black pixels ?
3
8
11
13
What is the total number of white pixels?
1 point
1 point
For the pixel at index i in the array, what are the corresponding row and column number (first row has row number 0, and second row has 1)?

Note: floor(x) is the largest integer that is less than or equal to x. ceil(x) is the smallest
integer that is greater than or equal to x.
floor(i/5), i%5
i%5, floor(i/5)
ceil(i/5), i%5
floor(i/5)+1, i%5

please tell answer it's very urgent thank you ​

Answer 1

Answer:

the answer is that one