How do you build this to use openCL?

[WraithD]

Is there a flag or configuration that must be updated before running build_tesseract.bat?

[georgeraraujo]

As per the wiki, you need the install the relevant SDK and modify the appropriate settings in the VS project files.
I managed to build with the Intel OpenCL SDK, and have attached the modified project files to this comment.

tesseract_vs2015_OpenCL.zip

The OpenCL-enabled build did not generate output in any of the 3 computers I tested (Intel, AMD and NVIDIA GPUs).

[peirick]

@GeorgeRBR Thanks!