How to visualize HOG Feature in MatLab?

Question

Indra 2013-11-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/105620-how-to-visualize-hog-feature-in-matlab

编辑： Danu Purnomo 2017-1-18

Dear Experts,,

I am working on people detection using HOG method. However I have a problem on visualization the HOG features in MatLab. I know there is a function provided by MatLab to extract the HOG feature, but I would like to know how to write the code for the visualization of HOG feature in MatLab. Anybody has idea to help me on this problem?

Thank you.

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Answer 1

Danu Purnomo 2017-1-11

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/105620-how-to-visualize-hog-feature-in-matlab#answer_250183

编辑：Danu Purnomo 2017-1-18

在 MATLAB Online 中打开

see https://www.mathworks.com/help/vision/ref/extracthogfeatures.html#inputarg_I

suppose you have an image called "image01.jpg"

img = imread('image01.jpg');
[featureVector,hogVisualization] = extractHOGFeatures(img);
% featureVector is HOG features 
% hogVisualization is HOG feature visualization

you can display the result of HOG features with

plot(hogVisualization);