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Beginner
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Rotate Image

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I want to rotate an image so I can traverse it across the horizontal rather than the vertical. I see that there are various rotating functions in IPP. These functions all suport rotations at an angle. I just want to move some pixels around, no blending needed.
I need something very simple, similar to the Ipp mirror functions.
Heres what I need:
Before:
1 x x 2
x x x x
x x x x
3 x x 4
After:
2 x x 4
x x x x
x x x x
1 x x 3
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New Contributor III
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Hi,
Have a look at this thread.
I posted some samples of how to use Mirror/Transpose to do 90/180/270 rotations. Someone also commented on this thread how to improve speed using a negative step to avoid the mirror function. Regards, Matthieu

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4 Replies
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Please check if ippiMirror or ippiTranspose functions fit your needs.

Vladimir
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New Contributor III
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Hi,
Have a look at this thread.
I posted some samples of how to use Mirror/Transpose to do 90/180/270 rotations. Someone also commented on this thread how to improve speed using a negative step to avoid the mirror function. Regards, Matthieu

View solution in original post

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Beginner
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HI there

It is so difficult for me to rotate image or process image without an image processing tool.

I have tried a free trial from an image tool.It works fine.But it is a little bit expensive.So i want to know that

if there is any cheap tool.Thanks a lot.

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Employee
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Hi Marrisa,

"cheap" (guess) means "free" - so the best one is OpenCV library (I think)

regards, Igor

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