Changing pixel figure coordinates when using imshow
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When I use imshow to plot the pixels represented by a matrix, each pixel is centered in the figure at its matrix coordinates (e.g. the pixel on row 1, column 1 is centered at figure coordinates (1,1)).
Is it possible to change this so that a specific corner of each pixel is positioned at its matrix coordinates? For example, can the pixel on row 1, column 1 be plotted with its lower right corner at figure coordinates (1,1), and so on for all the remaining pixels?
回答（1 个）
Image Analyst
2020-7-31
After you call it, try this:
axis xy
- xy — Default direction. For axes in a 2-D view, the y-axis is vertical with values increasing from bottom to top.
- ij — Reverse direction. For axes in a 2-D view, the y-axis is vertical with values increasing from top to bottom.
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2020-7-31
2020-8-2
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