Intel® Integrated Performance Primitives
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How to Filter Two Channel Image

vetroxl
Beginner
113 Views
Hi,
I have a two channel image and I need to do a low pass filter on the image. I only see support for 1,3,4 channels. Should I use 16u_C1R mod and divide the steps by two? The layout of the image is 4:2:2.
Thanks.
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3 Replies
Ryan2
Beginner
113 Views
You'd be wasting computation to use a C3R to just disregard the third channel. You've got the right idea.
Ying_H_Intel
Employee
113 Views
Hi Vetroxi,

Just comments,

If your image 4:2:2, 2channel is like YCrYCbYCrYCb....
there may two problems cause wrong result finally.
1. two 8udata != 16u
2.as low pass filter will use the neighbor pixer, you may mix Cr and Cb into computation.

You may need check the ipp reference manual to choose some suitable functions or functions combination to do this.

Best Regards,
Ying
vetroxl
Beginner
113 Views
Thanks Ying,
I have worked around this by converting to a planar image and doing a filter on planar channels. Seems to work ok.
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