apply_threshold: Image Processing of flow characteristics of rain-on-snow...

Description Usage Value Author(s) Examples

View source: R/ros.R

Description

Input data must be in matrix where the length of the matrix is 3 (rows, columns, three arrays) each of the three arrays is the R, G and B values Returns RDS data of the input

Usage

1
apply_threshold(raw_data)

Value

Return matrix with applied threshold

Author(s)

Ibrahim Bello, ibb4u2006@yahoo.com

Examples

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
## To process raw image
raw_image <- readJPEG('path to image')
## Apply threshold to the raw image data
apply_threshold(raw_data = raw_image)
## To find the distribution of blues
threshold_data <- apply_threshold(raw_data = raw_image)
blue_distribution(thresh_data = threshold_data)
## To plot the fractions of blue (all, dark blue, medium blue or light blue)
## color accross the depth of the raw image
threshold_data <- apply_threshold(raw_data = raw_image)
By default blue_selections = 'all' for all blue fractions
blue_selections = 'dark blue' for dark blue fractions
blue_selections = 'medium blue' for medium blue fractions
blue_selections = 'light blue' for ligth blue fractions
Export the plot to your local disk
my_plot <- file.path("path to save the plotted image")
depth_blue_fractions(thresh_data = threshold_data, blue_selections = 'all', plot_path = my_plot)
#' ## To plot the fractions of blue (all, dark blue, medium blue or light blue)
## color accross the length of the raw image
threshold_data <- apply_threshold(raw_data = raw_image)
By default blue_selections = 'all' for all blue fractions
blue_selections = 'dark blue' for dark blue fractions
blue_selections = 'medium blue' for medium blue fractions
blue_selections = 'light blue' for ligth blue fractions
Export the plot to your local disk
my_plot <- file.path("path to save the plotted image")
length_blue_fractions(thresh_data = threshold_data, blue_selections = 'all', plot_path = my_plot)

ibb4u2006/ros-flow-characteristics documentation built on May 30, 2019, 4:03 a.m.