Composite JPEG and Frame Size Test

Small test this morning.

102 kb normal frame

102 kb normal frame

Now, lets drop the resolution

33.3 kb low res frame

33.3 kb low res frame

Merge the two

39.8 kb Composite image

39.8 kb Composite image

For reference

26.8 kb interesting bits only

26.8 kb interesting bits only

I think that you might be able to adjust the individual MCU encoding programmatically, and keep the ROIs on 8×8 pixel boundaries and thus the difference would not be so big.

Doing a delta between a previously received key-frame would definitely make the image even smaller; the reference frame is a reasonable representation of what the delta would look like, and thus the saving in bandwidth.

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2 thoughts on “Composite JPEG and Frame Size Test

  1. […] love the concept, and some time ago, I did a very, very simple, unscientific test of adaptive compression on JPEG images. The idea is the same – you are […]

  2. […] (although relying on manual configuration of the zones), and I’ve rambled about this stuff here […]

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