topic Rotate Image in Intel® Integrated Performance Primitives

Rotate Image

reportbase — Tue, 27 Apr 2010 07:39:04 GMT

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

3 x x 4

After:

2 x x 4

x x x x

1 x x 3

Rotate Image

Vladimir_Dudnik — Tue, 27 Apr 2010 07:42:18 GMT

Please check if ippiMirror or ippiTranspose functions fit your needs.

Vladimir

Rotate Image

matthieu_darbois — Tue, 27 Apr 2010 14:41:10 GMT

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

HI there

marrisa — Tue, 11 Feb 2014 06:36:22 GMT

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.

Hi Marrisa,

Igor_A_Intel — Tue, 11 Feb 2014 14:11:37 GMT

Hi Marrisa,

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

regards, Igor