Questions tagged [edge-detection]

Let's say I have an image of an object against a white background. I want to crop so that the image fills the available space. This takes 10px off: convert original.png -shave 10x10 shaved.png How would I implement something like this that detects…

My goal is to implement an edge detection algorithmus that is capable to find edges of arbitrary 3d meshes. I want to find the edges by detecting normal discontinuities. Furthermore, I want the edges to be one pixel wide. I render the color values…

I would like to segment picture of cloths in order to remove the background. The pictures come from online retailers, they usually have an homogeneous white background. Using Canny edge detector works in most of the cases, but sometimes the cloths…

Consider a 2-dimensional polygon with unknown vertices $V_1, \dots, V_n \in \mathbb{R}^2$. Given a random set of points $p_1,\dots, p_m \in \mathbb{R}^2$ lying approximately on the perimeter of such a polygon, is it possible to estimate $V_1,\dots,…