draw_tokens: Draw token bounding boxes

In daiR: Interface with Google Cloud Document AI API

Draw token bounding boxes

Description

Plots the token (i.e., word) bounding boxes identified by Document AI (DAI) onto images of the submitted document. Generates an annotated .png file for each page in the original document.

Usage

draw_tokens(
  object,
  type = "sync",
  prefix = NULL,
  dir = getwd(),
  linecol = "red",
  linewd = 3,
  fontcol = "blue",
  fontsize = 4
)

Arguments

object	either a HTTP response object from dai_sync() or the path to a JSON file from dai_async().
type	one of "sync" or "async", depending on the function used to process the original document.
prefix	string to be prepended to the output png filename.
dir	path to the desired output directory.
linecol	color of the bounding box line.
linewd	width of the bounding box line.
fontcol	color of the box numbers.
fontsize	size of the box numbers.

Details

Not vectorized, but documents can be multi-page.

Value

no return value, called for side effects.

Examples

## Not run: 
resp <- dai_sync("page.pdf")
draw_tokens(resp)

draw_tokens("page.json", type = "async")

## End(Not run)

daiR documentation built on April 12, 2025, 1:39 a.m.