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Table 2 All features extracted for the maize leaf phenotypes, a total of 452 features.

From: Computable visually observed phenotype ontological framework for plants

Features

Feature Class

Relevant Pixels of the Leaf

Number of Features

001 - 048

RGB histogram

Entire leaf

48 (16, 16, 16)

049 - 096

RGB histogram

Necrotic lesions

48 (16, 16, 16)

097 - 144

RGB histogram

Chlorotic lesions

48 (16, 16, 16)

145 - 192

RGB histogram

Non-lesions

48 (16, 16, 16)

193 - 239

HSV histogram

Entire leaf

47 (15, 16, 16)

240 - 286

HSV histogram

Necrotic lesions

47 (15, 16, 16)

287 - 333

HSV histogram

Non-lesions

47 (15, 16, 16)

334 - 380

HSV histogram

Chlorotic lesions

47 (15, 16, 16)

381 - 392

Size histogram

Necrotic lesions

12

393 - 404

Size histogram

Chlorotic lesions

12

405 - 416

Roundness histogram

Necrotic lesions

12

417 - 428

Roundness histogram

Chlorotic lesions

12

429 - 440

NN distance histogram

Necrotic lesions

12

441 - 452

NN distance histogram

Chlorotic lesions

12

  1. All color features (red, green, blue, hue, saturation, and value) were generated using equi-width binning, and all lesion features (size, roundness, nearest neighbor (NN) distance) were generated using equi-area binning. The numbers in parenthesis in the Number of Features column show the total number of features as well as the number per channel for the RGB and HSV histograms.