I have an old SD780 IS and I would like to try to turn it into a video camera for lomography. Part of this will involve purposefully adding physical light leaks / reflections into the sensor itself.
I would also like to create some filters to modify the colors digitally.
I just found out about CHDK and have quickly gone through some of the starting pages on the wiki. It seems almost all of the scripting documentation refers to controlling various functions on the camera, rather than working with the image data itself.
It looks like I can access and write to memory using the Lua interface. But I'm not convinced this is the right approach.
Is it realistic at all to expect that I can write an image filter that works with video? If so, how can I get started? Is there some kind of example I can look at?
I was thinking a good practice filter could be a vignette or maybe some black & white dithering. But I'm not really sure how to get started with that. Would I use the Lua interface? Would I have to use DryOS?