How can I do these image processing tasks using OpenGL ES 2.0 shaders?

Question

How can I perform the following image processing tasks using OpenGL ES 2.0 shaders?

• Colorspace transform ( RGB/YUV/HSL/Lab )
• Swirling of the image

Answer 1

You could start by checking out this list of shaders here. If you want to dig in a bit more, I'd recommend you check out the orange book found here.