Whole image semantic segmentation of sorghum plants. (a) An example of a single sorghum plant with each pixel classified as either background (white), leaf (green), stalk (orange), or panicle (purple) using the LDA classifier described in Table 1
. (b) Examples of a number of morphological traits which may be estimated using a semantically segmented sorghum image. Examples of four different definitions of plant height used by different researchers are indicated as follows: #1: height to flag leaf collar, #2: stalk height, #3: height to apex, and #4: height to the tallest point.