Plotting Image arrays with Imagesc flips them vertically.

조회 수: 6 (최근 30일)
Aaron Greenbaum
Aaron Greenbaum 2016년 7월 28일
답변: Walter Roberson 2016년 7월 28일
I have an image contained in an array with (1,1) being in the top left corner. When using imagesc the image flips vertically and the y axis plots from 0-num starting from the bottom. Is there a way I can prevent the image from flipping and have the y-axis count from the top left down?

채택된 답변

Image Analyst
Image Analyst 2016년 7월 28일
It should work correctly. If it doesn't then perhaps the direction got reversed. You can either put
cla reset;
before you call imagesc(), or reverse the direction afterwards
axis ij;

추가 답변 (1개)

Walter Roberson
Walter Roberson 2016년 7월 28일
"axis ydirection controls the placement of the coordinate system origin and the direction of increasing y values. Set ydirection to ij to place the origin at the upper left corner of the axes. The y values increase from top to bottom. Set ydirection to xy to place the origin at the lower left corner. The y values increase from bottom to top. This is the default value."

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