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| fitting sin curve for Image Pixels http://forum.alglib.net/viewtopic.php?f=2&t=1081 |
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| Author: | vimala [ Thu Dec 05, 2013 1:22 pm ] |
| Post subject: | fitting sin curve for Image Pixels |
HI, I have some points on image. The position of points ex: x = [100 180 200 300 400 500 600 700] y = [100 300 500 300 100 400 500 200] I taken sin function y = a*sin(x)+b*cos(x)+c but my problem is, if i take directly sin(100)or sin(180) the final fitted points(Yest) are almost same. I think it is due to sin(theta), theta should be less than 360.If so how do i calculate sin(x) Thank u in advance, hope of getting solution |
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