Skip to main content Accessibility help
×
Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-23T14:32:35.735Z Has data issue: false hasContentIssue false

5 - Textures

Published online by Cambridge University Press:  04 May 2022

Richard Ansorge
Affiliation:
University of Cambridge
Get access

Summary

Chapter 5 continues the theme of digital image manipulation and considers transformations such as rotation or scaling with required pixel interpolation to create the most accurate final result. The GPU hardware texture units are used for this and their features are discussed. The cx utilities provided with our code include wrappers that significantly simplify the creation of CUDA textures. Curiously, these hardware texture units are rarely discussed in other CUDA tutorial material for scientific applications but we find they can give a 5-fold performance boost. We show how OpenCV can be used to provide a simple GUI interface for viewing the transformed images with very little coding effort. We end the chapter with a fully working 3D image registration program using affine transformations applied to volumetric MRI data sets. The 3D affine transformations are about 1500 times faster on the GPU than on the host CPU and a full registration between two MRI images of size 256 × 256 × 256 takes about one second.

Type
Chapter
Information
Programming in Parallel with CUDA
A Practical Guide
, pp. 142 - 177
Publisher: Cambridge University Press
Print publication year: 2022

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

  • Textures
  • Richard Ansorge, University of Cambridge
  • Book: Programming in Parallel with CUDA
  • Online publication: 04 May 2022
  • Chapter DOI: https://doi.org/10.1017/9781108855273.006
Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

  • Textures
  • Richard Ansorge, University of Cambridge
  • Book: Programming in Parallel with CUDA
  • Online publication: 04 May 2022
  • Chapter DOI: https://doi.org/10.1017/9781108855273.006
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Textures
  • Richard Ansorge, University of Cambridge
  • Book: Programming in Parallel with CUDA
  • Online publication: 04 May 2022
  • Chapter DOI: https://doi.org/10.1017/9781108855273.006
Available formats
×