crop_caim

Function that complements <code>read_caim()</code> and <code>read_caim_raw()</code>

Classify hemispherical
photographs of the plant canopy with algorithms specially developed for
such a task and well documented in
Díaz and Lencinas (2015) <doi:10.1109/lgrs.2015.2425931> and
Díaz and Lencinas (2018) <doi:10.1139/cjfr-2018-0006>. It supports
non-circular hemispherical photography, such as those acquired with
15mm lenses or with auxiliary fish-eye lenses attached to mobile devices.
For smartphone-based hemispherical photography see
Díaz (2023) <doi:10.1111/2041-210x.14059>. Most of the functions also
support restricted view photography.

Gast<c3><b3>n Mauro D<c3><ad>az

rcaiman

CAnopy IMage ANalysis

Gastón Mauro Díaz

crop_caim function

<dl><dt>r</dt>
<dd>SpatRaster</dd>
<dt>upper_left</dt>
<dd>An integer vector of length two. The pixels coordinates of
the upper left corner of a region of interest (ROI). These coordinates
should be in the raster coordinates system. This system works like a
spreadsheet, i.e, when going down through the vertical axis, the row
number increases (IMPORTANT: column and row must be provided instead of
row and column, as is the norm for objects from the class data.frame and
others alike)</dd>
<dt>width, height</dt>
<dd>An integer vector of length one. The size of the boxy ROI
whose upper left corner is the <code>upper_left</code> argument.</dd></dl>

Arguments

Crop a canopy image from a file — crop_caim

<dl>

<dt>r</dt>
<dd>SpatRaster</dd>


<dt>upper_left</dt>
<dd>An integer vector of length two. The pixels coordinates of
the upper left corner of a region of interest (ROI). These coordinates
should be in the raster coordinates system. This system works like a
spreadsheet, i.e, when going down through the vertical axis, the row
number increases (IMPORTANT: column and row must be provided instead of
row and column, as is the norm for objects from the class data.frame and
others alike)</dd>


<dt>width, height</dt>
<dd>An integer vector of length one. The size of the boxy ROI
whose upper left corner is the <code>upper_left</code> argument.</dd>

</dl>

crop_caim: Crop a canopy image from a file

Description

Usage

Value

Arguments

Examples