The CPCe (Coral Point Count with Excel extensions) program is a Windows-based software (PC use only) that provides a tool for the determination of coral cover using transect photographs. A specified number of spatially random points are distributed on a transect image and the features underlying the points are user-identified. Coverage statistics are then calculated and the results sent to Excel spreadsheets automatically.
Additionally, CPCe can be used for image calibration and area analysis of benthic features. Excel sheets are automatically generated to summarize the area calculations for each image.
Please use the following citation in published literature using CPCe:
Kohler, K.E. and S.M. Gill, 2006. Coral Point Count with Excel extensions (CPCe): A Visual Basic program for the determination of coral and substrate coverage using random point count methodology. Computers and Geosciences, Vol. 32, No. 9, pp. 1259-1269, DOI:10.1016/j.cageo.2005.11.009.
- Download the paper (1.3MB PDF)
Using CPCe is simple and straightforward. The main form is where the transect photograph is displayed, along with the coral codes. The main form has the following menu items:
Allows the specification of the rectangular area of interest on the frame image. This area can be marked manually, the entire frame image can be used, x and y offsets from the image edge can be specified, or an area of specific dimensions can be marked.
The National Coral Reef Institute (NCRI) is proud to offer CPCe as copyrighted freeware to the global community of researchers and coral reef managers. Our goal is to provide a valuable tool for monitoring, assessment, and restoration efforts worldwide.
As CPCe has grown in popularity, the time and effort needed for updates and user support has also increased. If CPCe has been useful for your work, please consider supporting its future. Your donation will directly contribute to the ongoing development and technical support, ensuring CPCe remains a free and effective tool for the scientific community.
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