sample_name |
Name of the single diaspore image extracted by Traitor.
Unique for each diaspore. |
image_name |
Image file name in image dataset. |
scientificName |
Accepted species name. |
scientificNameAuthorship |
Author of the species accepted
name. |
spec.name.ORIG |
Species scientific name in the data
source. |
genus |
Taxonomic genus. |
family |
Taxonomic Family. |
missing_structures |
Structures that are not present in the diaspore
image. |
length |
the longest dimension of the diaspore in millimetres
(mm) |
width |
the widest axis perpendicular to the length axis in millimetres
(mm) |
aspect_ratio
|
Proportional relationship between width and length. Dimensionless.
Formula: aspect ratio = width ÷ length.
|
area |
Area of diaspore contour in square millimetres
(mm2). |
perimeter |
Perimeter of diaspore contour in millimetres
(mm). |
surface_structure
|
Shape descriptor that describes the roughness of a diaspore’s surface.
The maximum value is 1 (completely smooth), and surface is increasingly
rougher as the value approaches 0. Dimensionless.
Formula: surface structure = perimeter (convex hull) ÷ perimeter.
|
solidity
|
Shape descriptor that describes the overall concavity of a diaspore. The
maximum value is 1 (completely convex shape), and lower values indicate
greater extent of concavity and/or irregular boundaries. Dimensionless.
Formula: solidity = area (convex hull) ÷ area.
|
circularity
|
Shape descriptor that describes the degree of similarity to a perfect
circle. The maximum value is 1 (perfect circle), and the shape is
increasingly less circular as the value approaches 0.
Formula: circularity = 4π × area / perimeter2.
|
R_median |
Linearized median pixel value for the red (R) channel within
the sRGB colour space. Range 0 (absence of channel) to 255 (maximum
value). |
G_median |
Linearized median pixel value for the green (G) channel
within the sRGB colour space. Range 0 (absence of channel) to 255
(maximum value). |
B_median |
Linearized median pixel value for the blue (B) channel
within the sRGB colour space. Range 0 (absence of channel) to 255
(maximum value). |
R_mean |
Linearized mean pixel value for the red (R) channel within the
sRGB colour space. Range 0 (absence of channel) to 255 (maximum
value). |
G_mean |
Linearized mean pixel value for the green (G) channel within
the sRGB colour space. Range 0 (absence of channel) to 255 (maximum
value). |
B_mean |
Linearized mean pixel value for the blue (B) channel within
the sRGB colour space. Range 0 (absence of channel) to 255 (maximum
value). |
sR_median |
Median pixel value for the red (R) channel. sRGB colour
space: range 0 (absence of channel) to 255 (maximum
value). |
sG_median |
Median pixel value for the green (G) channel. sRGB colour
space: range 0 (absence of channel) to 255 (maximum
value). |
sB_median |
Median pixel value for the blue (B) channel. sRGB colour
space: range 0 (absence of channel) to 255 (maximum
value). |
sR_mean |
Mean pixel value for the red (R) channel. sRGB colour space:
range 0 (absence of channel) to 255 (maximum value). |
sG_mean |
Mean pixel value for the green (G) channel. sRGB colour
space: range 0 (absence of channel) to 255 (maximum
value). |
sB_mean |
Mean pixel value for the blue (B) channel. sRGB colour space:
range 0 (absence of channel) to 255 (maximum value). |
rgb_0_r |
Median pixel value for the red (R) channel of the second
most dominant colour. sRGB colour space: range 0 (absence of channel) to
255 (maximum value). |
rgb_0_g |
Median pixel value for the green (G) channel of the second
most dominant colour. sRGB colour space: range 0 (absence of channel) to
255 (maximum value). |
rgb_0_b |
Median pixel value for the blue (B) channel of the second
most dominant colour. sRGB colour space: range 0 (absence of channel) to
255 (maximum value). |
rgb_1_r |
Median pixel value for the red (R) channel of the most
dominant colour. sRGB colour space: range 0 (absence of channel) to 255
(maximum value). |
rgb_1_g |
Median pixel value for the green (G) channel of the most
dominant colour. sRGB colour space: range 0 (absence of channel) to 255
(maximum value). |
rgb_1_b |
Median pixel value for the blue (B) channel of the most
dominant colour. sRGB colour space: range 0 (absence of channel) to 255
(maximum value). |
rgb_0_frac |
Fraction of pixels assigned as the second most dominant
colour. Range 0 to 0.5. |
rgb_1_frac |
Fraction of pixels assigned as the most dominant colour.
Range 0.5 to 1. |
x_0 – x_49 |
x values for each of the 50 xy coordinates that comprise
the diaspore contour after standardization for size invariance. Columns
x_0 to x_49. |
y_0 – y_49 |
y values for each of the 50 xy coordinates that comprise
the diaspore contour after standardization for size invariance. Columns
y_0 to y_49. |