内置功能，用于在python中编码的视觉文字包

Question

In matlab I have this function

 function psi = encodeImage(encoder, im)

This function takes

• im which is list of names of images

• encoder which is bovw.mat I have this file as encoder

This function does bag of visual words encoding and returns the spatial histograms of images.

I use this histograms for training in SVM classifier.

I am doing this task in python and I don't want to implement the bag of visual words encoding as my main task is to implement SVM. Is there a built in function in python that does bag of visual words encoding and returns spatial histograms so I can train SVM classifier on histograms.

Answer 1

Are you doing something similar to this?

http://www.robots.ox.ac.uk/~vgg/practicals/category-recognition/index.html

There is a computer vision library called Vlfeat. It's Matlab version is in active development state. However there exists a Python interface as well. Supports all major image processing features:

• Scale-Invariant Feature Transform (SIFT)

• Dense SIFT (DSIFT)

• Integer k-means (IKM)

• Hierarchical Integer k-means (HIKM)

• Maximally Stable Extremal Regions (MSER)

• Quick shift image segmentation

I am not sure whether Pyvlfeat will be sufficient or not. In fact, I was trying to do the same. Couldn't figure out. If it works, awesome, mention the trick in comment. If you have figured out some other method, please mention that too.