How to make the output size of imwarp the same as the input?

I have some 3D images and wish to perform some rigid transform on them and keep the input size and output size the same. I used the imwarp function for these operations. But I found that it seems impossible to directly give parameters to ensure that the input and output have the same size as functions such as imrotate. How should I deal with it?

(Theoretically I can also crop or pad by myself, but sometimes the size of the image has an odd number, which makes it difficult to define the transformation by myself.)

Answer 1

[Matt J]

There is an OutputView input parameter that will let you control that,

https://www.mathworks.com/help/images/ref/imwarp.html#btqog63-1-OutputView

[渲航]

Thanks!

Answer 2

[渲航]

I found the solution by Matt J's answer

Besides the transform defnition

tform = rigidtform3d(rotation,translation);

We should define another object by function affineOutputView, such as

sameAsInput = affineOutputView(size(img_pad),tform,"BoundsStyle","SameAsInput"); % the same output size as input

then applied both of them

res_volume = imwarp(img,tform,"OutputView",sameAsInput);