mathematical function in matlab

harrison

2015 4 11

0 个回答

更新时间：2015 11 6

6 次查看（30 天）

0 个投票

hello,

i want to compute a feature for image processing that uses coefficients from the haar wavelet and has this form :

and the coefficients are :

i have the coefficients but i am not very good at math.Can someone help me with this?

6 个评论
显示 4更早的评论隐藏 4更早的评论

Geoff Hayes 2015-4-11

That's fine..still unclear on what k and l are though. In the above, you are asked to compute f. Since you have two sums, you start with the first, so i equals to zero, and compute the inner sum where you just square the two coefficients and sum them together. These coefficients would be C(k,l) and C(k,l+1) for j equals to zero and j equals to one respectively. You then repeat this for i equals to one and sum the result with that which you found for i equals to zero. The remaining operations should then be clear.