Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

What means 'blobs' on SIFT algorithm?

Hi, I have a doubt about the SIFT algorithm.

In the OpenCV documentation it says:

For this, scale-space filtering is used. In it, Laplacian of Gaussian is found for the image with various σ values. LoG acts as a blob detector which detects blobs in various sizes due to change in σ.

I don't quite understand what means 'detects blobs', can someone explain to me?

Thanks in advance