To get the Hessian of Gaussian (HOG) of an image in Matlab, you can use the hessian
function from the Image Processing Toolbox. Here's a code snippet that demonstrates how to do this:
main.m558 chars23 lines
In this code, we first load an image and convert it to grayscale. Next, we define the standard deviation of the Gaussian kernel used to compute the Hessian. We then use the hessian
function to compute the Hessian matrix of the image. We compute the eigenvalues of the Hessian matrix and use them to compute the Hessian determinant and trace. Finally, we compute the HOG response using the determinant and trace, and the standard deviation of the Gaussian kernel.
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