Is there no binary type '01' in the pixel type of SimpleItk?

Algorithms
,
1

Is there no binary type ‘01’ in the pixel type of SimpleItk?

2

SimpleITK and ITK commonly use unsigned bytes, uint8 or sitkUInt8 type to represent binary images. These are commonly referred to as mask images. We have a FAQ entry in SimpleITK which discussed this common convention:

https://simpleitk.readthedocs.io/en/master/conventions.html#mask-image-types-and-default-values

3

Why is there no ‘2-bit int’ type? I think this type is very commonly used…

4

It is not directly addressable in memory. Reading memory which is not aligned with processor cache lines is inconvenient/slower, and most processor architectures, and therefore most programming languages, do not expose bit as a primitive type, like they do for int.

5

Can’t make a pseudo bit int type?

6

In C and C++, that is available in structs. Read more about it:

7

Also, C++ has a specialized std::vector<bool>.

8

Howto write a bit-int type with python?

9

I don’t think Python has that:

1 Like
10

Thanks!..it’s a hassle.