I have captured few RAW images using my PiCam v2.0. I want to convert these images to JPEG and analyze the time taken by GPU, which has the Image Signal Processor, for performing this conversion. As of yet, I have been unable to find any library that lets me access the GPU for such a purpose.
Also, the following link (http://hopkinsdev.blogspot.in/2016/07/raspberry-pi-openmax-jpeg-encoder.html) suggests using OpenMAX for RAW to JPEG conversion, but I reckon the word "RAW" doesn't mean direct data from the image sensor.