FIGURE 4.

Comparison of time spent on ImageJ analysis between the SizeExtractR method and a manual method, tested using generalized linear model (mean ± 95% confidence interval). The manual method (red) uses default ImageJ tools to produce ROI size measurements, while the SizeExtractR method (blue) uses custom SizeExtractR‐macros to speed up the image analysis workflow. While time spent per image is directly proportional to the number of corals outlined (per image), the SizeExtractR method took approximately half the time than the manual method with default ImageJ tools, for a given number of corals per image