How do i remove white parts from the contour plots?

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Saugat Shrestha 2020-4-24

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评论： Chenzheng Jia 2022-12-2

When I am plotting a contour I am getting white portions in the areas beyond the specicied range of limits. I would rather want the the colour of the extreme limits.

I hope you can help me solve this problem.

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Walter Roberson 2020-4-24

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https://ww2.mathworks.cn/matlabcentral/answers/520409-how-do-i-remove-white-parts-from-the-contour-plots#answer_428104

在 MATLAB Online 中打开

constrained_data = max(min(Data, upper_limit_to_show), lower_limit_to_show);
surf(X, Y, constrained_data)

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Walter Roberson 2022-12-2

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@Chenzheng Jia

upper_limit_to_show and lower_limit_to_show are not functions in this context: they are values that represent the upper limit of values that you want to display, and the lower limit that you want to display.

For example,

Data = imread('flamingos.jpg');

upper_limit_to_show = 200;

lower_limit_to_show = 150;

constrained_data = max(min(Data, upper_limit_to_show), lower_limit_to_show);

imshow(Data); title('original');