The imager package in R is a powerful tool for processing and analyzing images. It provides a wide range of functions for image manipulation, transformation, filtering, and analysis. Below is a detailed guide on using the imager package for image processing and analysis.
I. The imager Package in R
1. Install and Load the imager Package:
install.packages("imager")
library(imager)2. Read and Display an Image:
# Load an example image
img <- load.image(system.file("extdata", "parrots.png", package="imager"))
# Display the image
plot(img)3. Image Properties:
# Get image properties
width(img)
height(img)
channels(img)4. Image Processing:
Resizing:
# Resize the image
resized_img <- resize(img, width = 100, height = 100)Filtering:
# Apply a Gaussian filter
filtered_img <- gaussian(img, sigma = 2)Color Manipulation:
# Convert to grayscale
gray_img <- grayscale(img)
