pset3/resize same expexted sizes for different scales

Question

While resolving resize(less) problem I've encountered check50 expects the same sizes of files with different scales. How could that be?

:( doesn't resize small.bmp when n is 1
    Header field biSize doesn't match. Expected 0x28, not 0x24
:( resizes small.bmp correctly when n is 2
    Header field biSize doesn't match. Expected 0x28, not 0x78
:( resizes small.bmp correctly when n is 3
    Header field biSize doesn't match. Expected 0x28, not 0xfc
:( resizes small.bmp correctly when n is 4
    Header field biSize doesn't match. Expected 0x28, not 0x1b0
:( resizes small.bmp correctly when n is 5
    Header field biSize doesn't match. Expected 0x28, not 0x2d0

I'm pretty sure I still have some issues with my code, but I can't get, why the size of image 3*3 should be the same to one 12*12. Any ideas?

Answer 1

The question is solved. I've just been confused and mixed up biSize and biSizeImage. biSize - is the size of the header and it has the same size all the way.