image_uri: Encode an image file to a data URI

In forks-micael/knitr: A General-Purpose Package for Dynamic Report Generation in R

Description

This function takes an image file and uses the markdown package to encode it as a base64 string, which can be used in the img tag in HTML.

Usage

image_uri(f)

Arguments

f	Path to the image file.

Value

The data URI as a character string.

Author(s)

Wush Wu and Yihui Xie

References

http://en.wikipedia.org/wiki/Data_URI_scheme

Examples

uri = image_uri(file.path(R.home("doc"), "html", "logo.jpg"))
if (interactive()) {
    cat(sprintf("<img src=\"%s\" />", uri), file = "logo.html")
    browseURL("logo.html")  # you can check its HTML source
}

forks-micael/knitr documentation built on March 20, 2020, 12:45 a.m.