Ask Your Question

felixhu's profile - activity

2020-09-18 04:04:45 -0500 received badge  Popular Question (source)
2014-10-11 03:00:39 -0500 received badge  Student (source)
2014-09-17 14:37:41 -0500 received badge  Organizer (source)
2014-09-17 11:55:41 -0500 asked a question How is the edge detection in this video achieved?

Here is the video in question:

https://www.youtube.com/watch?v=CbwIJMz9PAQ#t=82

I've tried using Canny and Scharr edges to reproduce the effect, but the resulting live feed is very noisy, with hairs coming out of all the edges randomly. I've tried applying a Gaussian filter to the result, but the noise is no where near as low as is shown in the video.

Any ideas?

2014-08-06 15:21:06 -0500 asked a question Warp image to change perspective

I am trying to figure out how to change an image such that something like this will become a top down view.

The image is of a piece of paper, with five blocks that are all the same size. I would like the distorted image to contain just the piece of paper, and have the five blocks be roughly the same size.

I am really new to OpenCV, and any help would be greatly appreciated! :)