Anti-Aliasing Filter for matlab imresize
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Hi, I am doing a project on computer graphics and have been asked to implement the matlab's imresize function in C++, using bicubic interpolation.
As you know, if the scale factor is less than one,we need a anti-aliasing filter while interpolation. However I have no experience in filter design and at the moment I'm still relatively new to matlab and the image processing toolbox. I've tried using the fspecial gaussian filter but it doesnt seem to have muxh effect. Can you give me any tips on how to produce an appropriate filter in matlab, or point me to relevant information.
Any help is appeciated,
many thanks,
Xifei WU 2011.6.14
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David Young
2011-6-14
I'm sorry, but I don't know about the internal operation of imresize. I guess with some effort it would be possible to work out the anitaliasing method by applying imresize to simple examples.
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