Compress PNG files. The software pngquant is required to use this function.
It attempts to reduce the file size of images without major loss in image quality. Files sizes can be reduced
from 30-60% using this function. The compressed file will be outputted to the same folder as the original image.
Usage
compress_png(img, pngquant_path = NULL, suffix = "")
Arguments
- img
str File path to the png file.
- pngquant_path
str File path to pngquant executable file (pngquant.exe).
- suffix
str Optional parameter to add a suffix to the compressed image.
Value
None. Will output compressed image to the local folder.
Examples
if (FALSE) { # \dontrun{
img_path <- "C:/Users/ABC1/Desktop/pic1.png"
pngquant_path <- "C:/Users/ABC1/Downloads/pngquant.exe"
compress_png(img_path, pngquant_path, "_compressed")
} # }
