# VTK image IO and direction matrix

**URL:** https://discourse.itk.org/t/vtk-image-io-and-direction-matrix/1776
**Category:** Community
**Created:** [April 10, 2019, 8:44pm UTC](https://discourse.itk.org/t/vtk-image-io-and-direction-matrix/1776 "2019-04-10T20:44:32Z")
**Posts on this page:** 1
**Showing post:** 11

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### Author: ![blowekamp](https://discourse.itk.org/user_avatar/discourse.itk.org/blowekamp/32/79_2.png) [@blowekamp](https://discourse.itk.org/u/blowekamp)
#### Post date: [April 17, 2019, 1:24pm UTC](https://discourse.itk.org/t/vtk-image-io-and-direction-matrix/1776/11 "2019-04-17T13:24:13Z")

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This make since to me, too.

Warning when information is being lost when saving images is the bare minimal which should occour.

I use ITK for microscopy image analysis where the direction cosine matrix is almost always identity. But here we struggle with preserving the xyz image spacing, never mind the origin.

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