PIxel to length Scale

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Robert Roy 2015-1-30

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https://ww2.mathworks.cn/matlabcentral/answers/173506-pixel-to-length-scale

评论： Robert Roy 2015-1-30

Hi there I have currently produced image that I am trying to change the scaling of the axis from pixels to either mm or cm. I know from scaling that the resolution is 0.048 mm/pixel.

The part of the code I am using for imaging is:

image=AverageImg1

imagesc(flipud(AverageImg1),[0 550]);

set(gca,'YDir','normal');

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Answer 1

Jan 2015-1-30

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/173506-pixel-to-length-scale#answer_166445

在 MATLAB Online 中打开

You can use iamge() instead and specify the X and Y ticks manually:

x = linspace(0, 0.048 * 550, 551);
y = linspace(0, 0.048 * 550, 551);
image(x, y, AverageImg1);

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Robert Roy 2015-1-30

Thanks but unfortunately due to the nature of the data I can only use the imagesc. The pixel scale is 1024*1280. With this method as well it seems to change the actual intensity values as well when the only thing that needs changed is the axis scale.

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