Fig. 5.

Image-based classification of E. gracilis cells under different culture conditions. (a) Obtained image library of the cells. Top: cells cultivated under a nitrogen-sufficient condition. Bottom: cells cultivated under a nitrogen-deficient condition. Green: intracellular lipids stained by BODIPY505/515. Red: intracellular chlorophyll (autofluorescence). (b) Scatter plot of the cells (N = 3,000 for each culture). (c) Histogram of the cells with a meta-feature obtained by a support vector machine.