Hallo, I would like to do some video analysis to control the playback of audio files. pix_movement and pix_blob work quite well, but now I would like to go into details and have some questions:
How can I apply a color filter to an image? I would like to distinguish the movement of different colors...
Is there an object that returns the total brightness of an image? Or are there other possibilities to detect the "amount" of movment in a video? (I read about pix_mean_color in the archives but I can't find it in gem 0.90.1...)
I would like to recognize whether big blocks of a single color or fine noise-like structures are moving. Downsamling might be a good solution to get away the fine structures and to reduce the number of pixels inside of a colored block that are not recognized as moving. pix_resize didn't change anything (are there any parameters I can pass to that object?) and needs lots of computing power... Any ideas how to solve this problem?
Thank you for any ideas or suggestions! I am doing my first steps with pd (and image processing), so probably I have overlooked several things...
ciao, Florian