In UBC-MDS/picfixR: Quick image enhancements in a programming environment

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

The contrast("./input.png", 5, FALSE, "./output.png") function adjusts the contrast of an image.

Given a desired level of adjustment intensity, this function works by making dark pixels much darker, and light pixels only slighly darker.

Arguments:

• input_img: path to an input image
• intensity: level of contrast enhancement, between 0 and 10, defaults to 5.
• display: print image to console if TRUE, defaults to FALSE.
• output_img: path to save the output image

Returns:

• an image file with adjusted contrast in specified output path.

Image types currently supported:

• .png

Example:

contrast(input_img="../img/image.png", 
         intensity=5, 
         display=FALSE, 
         output_img="../img/contrast_image.png")

UBC-MDS/picfixR documentation built on May 17, 2019, 1:13 a.m.