Designing kernels

The Visual Graph Tools provide a library of predefined APEX2 kernels to cover a wide range of elementary image and video processing tasks. A developer is provided an option to design their own kernels and store them in the developer's workspace or in the external storage.

The kernel design process includes the following high-level steps:

Table 1. APEX2 kernel design: high-level steps
Step	Action	Refer to:
1	Create an APEX2 kernel project.	Creating a custom APEX2 kernel
2	Create an APEX2 graph project based on the kernel.	Creating a graph for a kernel
3	Validate the graph diagram.	Validating the diagram
4	Emit the source files in the above graph project (the APEX2 graph source type and the Emit kernels flag).	Emitting the source code
5	Open the emitted source files and add the kernel code.	Adding code to a custom APEX2 kernel
6	Move the kernel to an external storage to use it in any workspace.	Moving a custom kernel to the external storage