Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Apr 14;9(4):giaa035. doi: 10.1093/gigascience/giaa035

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2020. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Figure 14: — Analysis of periodic stitching artifacts in the frequency domain. (a) A stitched image where devignetting has not been applied to the tiles; (b), a stitch of devignetted data. (c, d) Central region of the FFTs of (a) and (c), respectively. The arrows in (c) point to the fundamental peaks of the grid artifact. (e) Shows plots of (c) and (d) through the center of each image along the x and y axes. The calculated value for T_stitch aligns well with the peaks along both axes. Arb. u.: arbitrary units; devig.: devignetting.