Why titles are flipped vertically in the following code?

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soe 2018-12-31

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/437768-why-titles-are-flipped-vertically-in-the-following-code

评论： Snehil Singh 2021-5-2

%Please change the file formats into tif first
clear;
clc;
close all;
I=imread('Fig0316(1)(top_left).tif');
I1=imread('Fig0316(2)(2nd_from_top).tif');
I2=imread('Fig0316(3)(third_from_top).tif');
I3=imread('Fig0316(4)(bottom_left).tif');
[nk, rk]=imhist(I);
[nk1, rk1]=imhist(I1);
[nk2, rk2]=imhist(I2);
[nk3, rk3]=imhist(I3);
figure('Name','Images with different contrast','NumberTitle','off');
subplot(2,4,1)
imshow(I);
title('Brighter Image');
subplot(2,4,2)
imshow(I1);
title('Low Contrast Image');
subplot(2,4,3)
imshow(I2);
title('High Contrast Image');
subplot(2,4,4)
imshow(I3);
title('Darker Image');
subplot(2,4,5)
bar(rk,nk);
title('histogram for Brigher Image');
subplot(2,4,6)
bar(rk1,nk1);
title('histogram for Low Contrast Image');
subplot(2,4,7)
bar(rk2,nk2);
title('histogram for High Contrast Image');
subplot(2,4,8)
bar(rk3,nk3);
title('histogram for Darker Image');

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soe 2019-1-1

I'm using MATLAB R2013a.

Here is like that.

Snehil Singh 2021-5-2

'imhist' requires Image Processing Toolbox.

Error in Untitled3 (line 8)

[nk, rk]=imhist(I);

How to resolve this error

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采纳的回答

Cris LaPierre 2019-1-1

2
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/437768-why-titles-are-flipped-vertically-in-the-following-code#answer_354615

That's weird. It's not a common issue - it'd be all over the place if it were. After some searching, I found this post saying there can be issues with some ATI graphics cards. Try the suggestions there (updating graphics drivers, switching renderer) and let us know if that solved the problem.