Nokia PUSH

Are you still dealing with the gaps in the curves? I’m quite pessimistic that just making the program faster can solve it, there must be some significant delay between each sensor exposure… Remember that cameras are originally supposed to expose just in short periods, you are already lucky that the gaps are so short!

If that problem persists, what you need is some kind of processing to close the curve. That is a typical case for the famous morphological “closure” operator, which is a dilation followed by an erosion. These are all complicated names, but there is really nothing to it, the code is simple. Many image processing libraries do that, and it’s not very hard to do it yourself. I know Gimp does it, for example (dilate and erode), you can try and see if that would solve it to you.

Just a simple blurring of the image would already help, and if it ends up looking too blurred, you can blur and de-blur. That should give you the same input in theory, but not in practice, because of the infamous non-linearities and noises that are involved. If after the blurring you perform some kind of non-linear function, like thresholding the image (setting all pixels in a certain range to 255, for example), I’m pretty much sure you will get rid of the gaps.

You may also find that you need to limit the processing just to the area where you are “painting” more recently… But I don’t know exactly how you are working anymore, and if that would be easy or necessary.

hey, thanks nic. yeah i know of these tools, just ran out of time to implement them. if u can post a link id love to check out that code.