Set y axis of image in imshow at the bottom without flipping the image

10 次查看（过去 30 天）

Alfonso 2018-6-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/405960-set-y-axis-of-image-in-imshow-at-the-bottom-without-flipping-the-image

评论： Ignacio Barranco Granged 2018-11-17

At the moment when I display the image with imshow the y axis are logically set with the origin at the top. I would like to know if there is a way of setting the origin at the bottom but without flipping the image. If I use

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

The origin is at the bottom but the image is flipped.

I am using ecography images, so I can't use imagesc.

Thanks in advance.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Image Analyst 2018-6-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/405960-set-y-axis-of-image-in-imshow-at-the-bottom-without-flipping-the-image#answer_324942

在 MATLAB Online 中打开

I don't understand what you want. Do you have tick labels but want the tick labels flipped but the image not flipped? If so use yticklabels()

grayImage = imread('cameraman.tif');
imshow(grayImage);
axis on;
[rows, columns, numberOfColorChannels] = size(grayImage)
yTickNumbers = rows - yticks
for k = 1 : length(yTickNumbers)
  ytl{k} = sprintf('%3d', yTickNumbers(k));
end
yticklabels(ytl)