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Figure 5 | BMC Bioinformatics

Figure 5

From: Colonyzer: automated quantification of micro-organism growth characteristics on solid agar

Figure 5

Automatic Thresholding with Gaussian mixed model. Example trimmed image pixel intensity distribution (black crosses), maximum likelihood model estimate for mixed model (red curve), individual Gaussian components modelling agar and culture intensities separately (blue curves) and optimal threshold x Thresh (green line) at intersection of the two component distributions. This example histogram represents a plate image with a strong agar signal and a low cell density (culture barely detectable by eye).

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