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imagefx (version 0.4.1)

Extract Features from Images

Description

Synthesize images into characteristic features for time-series analysis or machine learning applications. The package was originally intended for monitoring volcanic eruptions in video data by highlighting and extracting regions above the vent associated with plume activity. However, the functions within are general and have wide applications for image processing, analyzing, filtering, and plotting.

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Version

Install

install.packages('imagefx')

Monthly Downloads

220

Version

0.4.1

License

GPL-3

Maintainer

Alex Witsil

Last Published

February 13th, 2020

Functions in imagefx (0.4.1)

erebus.90

Image of Erebus Volcano, Antarctica
blob.stats

Blob Statistics from Erebus Volcano, Antarctica
erebus.70

Image of Erebus Volcano, Antarctica
calc.blob.stats

Calculate Color and Spatial Statistics from Blob Region
build.gaus

Build 2D Gaussian Image (Matrix)
erebus

Image of Erebus Volcano, Antarctica
fit3d

Fit a Plane to Image (Matrix) with SVD
sig.extract

Extract Time-Series Signal from Video Data
shift.vec

Shift Vector
gen.eg.img.list

Generate Example Image List Data
tux1

Image of Tux
image2

Plot Images (Matrices) with Intuitive Axes
tux2

Image of Tux
pcorr3d

Phase Correlation of Images
points2

Plot points on image
fftshift

Shift Zero Frequency to Center
xcorr3d

Normalized Cross Correlation of Images
range01

Scale Object Values Between Zero and One
filt3d

Filter Image (Matrix) with Mask via Convolution
sakurajima

Image of Sakurajima Volcano, Japan
run.avg

Perform Running Average via Convolution
crop.image

Crop an Image
cor.mat

Correlate Matrix Rows
amp.sig

Amplify Time Varying Signals in Video
build.lap

Build 5-Point Laplacian Stencil
blob.extract

Extract Blob Region from Image (Matrix)
erebus.40

Image of Erebus Volcano, Antarctica