Arey301A.scope: Pixel-to-metric distance conversions for the dissecting scope...

In aphanotus/borealis: Tools for reproducible geometric morphometric analysis

Pixel-to-metric distance conversions for the dissecting scope in Arey 301A

Description

Ideally, micrographs are taken with a ruler or other scale in the image. However, if that's not the case, metric distances can be infered from pixel distances based on this conversion table. These data are based on measurements made from a high-quality stage micrometer on the VWR VistaVision dissecting microscope in Arey 301A at Colby College. Digital photomicrographs were taken with a Moticam 5 digital camera. Values apply to the camera's high resolution (2592 × 1944) setting. However, a value for pixels per mm are also included for the low resolution (1296 × 972) setting. (Try to always save images at high resolution!)

Usage

Arey301A.scope

Format

An object of class data.frame with 9 rows and 6 columns.

Details

mag

Total magnification

setting

Zoom setting

umpx

Microns per pixel

umpx_sd

Standard deviation for the micron/pixel values, based on triplicate measurements

pxmm

Pixels per millimeter at high resolution

pxmm_lores

Pixels per millimeter at low resolution

Source

Dave Angelini [e-mail] [aut, cre]

Examples

# Load the dataset
data("Arey301A.scope", package = "borealis")

Arey301A.scope

aphanotus/borealis documentation built on Nov. 4, 2022, 8:44 p.m.