| bwimage-package {bwimage} | R Documentation |
Describe Image Patterns in Natural Structures
Description
A computational tool to describe patterns in black and white images from natural structures. 'bwimage' implemented functions for exceptionally broad subject. For instance, 'bwimage' provide examples that range from calculation of canopy openness, description of patterns in vertical vegetation structure, to patterns in bird nest structure.
Details
The DESCRIPTION file:
| Package: | bwimage |
| Type: | Package |
| Title: | Describe Image Patterns in Natural Structures |
| Version: | 1.3 |
| Date: | 2020-04-22 |
| Author: | Carlos Biagolini-Jr. |
| Maintainer: | Carlos Biagolini-Jr.<c.biagolini@gmail.com> |
| Depends: | stats, utils |
| Imports: | jpeg, png |
| Description: | A computational tool to describe patterns in black and white images from natural structures. 'bwimage' implemented functions for exceptionally broad subject. For instance, 'bwimage' provide examples that range from calculation of canopy openness, description of patterns in vertical vegetation structure, to patterns in bird nest structure. |
| License: | GPL (>= 2) |
Index of help topics:
aggregation_index Aggregation index calculator altitudinal_profile Highest black pixel by sections bwimage-package Describe Image Patterns in Natural Structures compress Compress square to circle denseness_column Denseness in column sections denseness_row Denseness in row sections denseness_sample Denseness in samples denseness_total Denseness for whole image heigh_maximum Height of the highest black pixel in the image heigh_propotion Cumulative denseness for each line heigh_propotion_test Cumulative denseness test hole_columm Holes description in columns sections hole_row Holes description in row sections hole_section Hole finder hole_section_data Summary of holes information image_information Summary of image information light_gap Light gap plot_samples Plot samples from denseness_sample stretch stretch circle to square threshold_color Image to matrix - Single threshold_image_list Image to matrix - List topline Top line
A computational tool to describe patterns in black and white images from natural structures.
Author(s)
Carlos Biagolini-Jr.
Maintainer: Carlos Biagolini-Jr.<c.biagolini@gmail.com>
References
Biagolini-Jr C, Macedo RH (2019) bwimage: A package to describe image patterns in natural structures. F1000Research 8 Lambers M (2016) Mappings between sphere, disc, and square. Journal of Computer Graphics Techniques Vol 5:1-21 Nobis M, Hunziker U (2005) Automatic thresholding for hemispherical canopy-photographs based on edge detection. Agricultural and forest meteorology 128:243-250 Shirley P, Chiu K (1997) A low distortion map between disk and square. Journal of graphics tools 2:45-52 Zehm A, Nobis M, Schwabe A (2003) Multiparameter analysis of vertical vegetation structure based on digital image processing. Flora-Morphology, Distribution, Functional Ecology of Plants 198:142-160
Examples
bush<-system.file("extdata/bush.JPG", package ="bwimage")
bush_imagematrix<-threshold_color(bush, "jpeg", "proportional",compress_rate = 0.1)
aggregation_index(bush_imagematrix)