Matlab-使用矢量表示法绘制图像渐变

Question

I have computed the gradients from every pixel location of a grayscale image, both on X and Y axis and this can result in a vector representation for each pixel location. I want to obtain a plot figure similar to the one illustrated bellow:

My image has 1000 x 1002 dimensions and I have computed the gradients for each pixel on X and Y directions so I have 2 matrices, each one having 1000 x 1002 dimensions. I am interested in obtaining a plot similar to the one illustrated in the image above, where I show basically the direction of each vector obtained from the computed gradients. I do not care about the magnitude of the vector, so basically each arrow can have the same length.

Do you know how can I obtain something similar to this?

Answer 1

It works in my case:

[DX,DY] = imgradient(imageIn);    
%show gradient
figure;
[x,y]=meshgrid(1:1:500);
figure
quiver(x,y,DX,DY)
hold off