What is the difference between this two?

[hkl8324]

1.1080i ISDB-T Ts Source>Deinterlace (Ddeint using avisynth)>Resize to 960x540
2.The same file>Resize to 960x540

I have searched 960x540 in this forum but I find something that I cant quite understand.

Can someone told me is there any difference between the two methods I just mentioned?

Is deinterlacing the source redundant?
Because I got a deinterlace output through #2(Actually I dont know why...)

[neuron2]

Is deinterlacing the source redundant? Yes.

Because I got a deinterlace output through #2(Actually I dont know why...) 540 = 1080 / 2, so in fact resizing is just throwing away one field, which is the simplest way to deinterlace.

You could also explicitly throw away a field:

separatefields().selecteven()
lanczosresize(960,540)