How to show an image axes in pixeles?

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Erika
Erika 2017-1-30
评论： Erika 2017-1-31
I want to display the axes of an image in pixels, I mean the center (0,0) must be placed in the top left corner of the image and it must be limited for 640x480 pixels. See the image below for further explanation. How can I do this? Any help is appreciated.

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Jan
Jan 2017-1-30
编辑：Jan 2017-1-30
FigH = figure('Position', [100, 100, 720, 560]);
AxesH = axes('Units', 'pixels', 'Position', [40, 40, 640, 480], ...,
'YDir', 'reverse', 'Parent', FigH);
image(0:639, 0:479, rand(640, 480, 3), 'Parent', AxesH);

更多回答（2 个）

Image Analyst
Image Analyst 2017-1-30
Display the image, then call axis on
imshow(yourImage);
axis on;
John BG
John BG 2017-1-30
axis ij
does precisely invert the Y axis placing 0 up left.
.
if you find this answer useful would you please be so kind to mark my answer as Accepted Answer?
To any other reader, please if you find this answer of any help solving your question,
please click on the thumbs-up vote link,
thanks in advance
John BG
<mailto:jgb2012@sky.com jgb2012@sky.com>

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