draw_rect

Add a rectangle to an image. Like other native CImg drawing functions, this is meant to be basic but fast. Use implot for flexible drawing.

Fast image processing for images in up to 4 dimensions (two spatial
dimensions, one time/depth dimension, one colour dimension). Provides most
traditional image processing tools (filtering, morphology, transformations,
etc.) as well as various functions for easily analysing image data using R. The
package wraps 'CImg', <http://cimg.eu>, a simple, modern C++ library for image
processing.

Aaron Robotham

imager

Image Processing Library Based on 'CImg'

Simon Barthelme

David Tschumperle

Jan Wijffels

Haz Edine Assemlal

Shota Ochi

Rodrigo Tobar

draw_rect function

<dl><dt>im</dt>
<dd>an image</dd>
<dt>x0</dt>
<dd>x coordinate of the bottom-left corner</dd>
<dt>y0</dt>
<dd>y coordinate of the bottom-left corner</dd>
<dt>x1</dt>
<dd>x coordinate of the top-right corner</dd>
<dt>y1</dt>
<dd>y coordinate of the top-right corner</dd>
<dt>color</dt>
<dd>either a vector, or a string (e.g. "blue")</dd>
<dt>opacity</dt>
<dd>0: transparent 1: opaque.</dd>
<dt>filled</dt>
<dd>fill rectangle (default TRUE)</dd></dl>

Arguments

Author

Draw rectangle on image — draw_rect

<dl>

<dt>im</dt>
<dd>an image</dd>


<dt>x0</dt>
<dd>x coordinate of the bottom-left corner</dd>


<dt>y0</dt>
<dd>y coordinate of the bottom-left corner</dd>


<dt>x1</dt>
<dd>x coordinate of the top-right corner</dd>


<dt>y1</dt>
<dd>y coordinate of the top-right corner</dd>


<dt>color</dt>
<dd>either a vector, or a string (e.g. "blue")</dd>


<dt>opacity</dt>
<dd>0: transparent 1: opaque.</dd>


<dt>filled</dt>
<dd>fill rectangle (default TRUE)</dd>

</dl>

draw_rect: Draw rectangle on image

Description

Usage

Value

Arguments

Author

See Also

Examples