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Adding points in imagesc matrix

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Allan Miller
Allan Miller 2020-1-3
评论： Image Analyst 2020-1-6
Good day,
I have a 2D matrix and I am using imagesc to produce the following diagram:
I need to add extra values to the individual pixels like below:
so that I produce something like below:
I have tried googling on pixel addition but i have reached a dead end... ho can I proceede?

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回答（1 个）

Image Analyst
Image Analyst 2020-1-3
Use imerode() to enlarge those black regions by 7 pixels around each black pixel.
kernel = true(3, 3);
kernel(1, 2) = false; % Don't use upper middle one so lower middle pixel doesn't go to black.
output = imerode(binaryImage, kernel);
  2 个评论
Allan Miller
Allan Miller 2020-1-6
result.png
This is the result I am getting by using the code you suggested..., did I miss something?
Image Analyst
Image Analyst 2020-1-6
Attach your image and code in a .mat file. Until then, try
imshow(yourMatrix, []);
colormap(gray(256));

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