FIGURE 6.

A high-level view of the flow of data through relevant components in calling an OpenCV Op. Starting from the top, when an Op is called, e.g., from a script in Fiji, SciJava Ops finds the appropriate function and performs necessary parameter conversion of data types. Control passes to the registered Bytedeco Java wrapper function, which itself makes the native C++ call to OpenCV. When data processing is complete our image returns up the layers, passing through another conversion back to the operative data type (ImgLib2’s Img in this case).