A method of mapImage.

the values of one or more images stretched to a common range; MATLAB’s rescale of a mapImage

Syntax

mg = rescale(mg)

To [0, 1].

mg = rescale(mg, -1, 1)

To another range.

mg = rescale(mg, perChannel=True)

Every channel on its own.

Description

Cross correlation compares pictures of different detectors, whose absolute levels mean nothing to each other, so putting them on one range is the usual first step. Each image is rescaled on its own, all its channels together, which keeps the colour balance. A non finite value is left out of the range and left alone, so the padding of a resampling stays NaN; a flat image is returned unchanged.

Input

mg mapImage or mapImageList
lo the lower end of the range
hi the upper end of the range

Keywords

keyword default description
perChannel False rescale every channel separately

Output

mg the images rescaled, new objects

See also

mapImage, mapImageList, trueEbsd, EBSDTrueEbsd

MATLAB’s mapImage.rescale

source

Citing this page. This page is part of the documentation of MTEX, a free and open source MATLAB toolbox for analyzing and modeling crystallographic textures. It was written by The MTEX Developers and is published at https://mtex-toolbox.github.io/mapImage.rescale_py.html. If you use MTEX, or reuse text or figures from this page, in your research, please cite

F. Bachmann, R. Hielscher, H. Schaeben: Texture Analysis with MTEX - Free and Open Source Software Toolbox, Solid State Phenomena 160 (2010), 63-68. 10.4028/www.scientific.net/SSP.160.63

BibTeX 
@article{bachmann2010mtex,
  author  = {F. Bachmann and R. Hielscher and H. Schaeben},
  title   = {Texture Analysis with MTEX - Free and Open Source Software Toolbox},
  journal = {Solid State Phenomena},
  volume  = {160},
  pages   = {63-68},
  year    = {2010},
  doi     = {10.4028/www.scientific.net/SSP.160.63},
  url     = {https://doi.org/10.4028/www.scientific.net/SSP.160.63}
}

Other papers describing specific MTEX methods are listed under Publications — please cite the one that best fits your application. The MTEX source code is licensed under the GNU General Public License v2.0; the text and figures of this documentation are licensed under CC BY 4.0, which permits reuse — including by automated systems — provided The MTEX Developers and this page are credited.