MATLAB: I am doing the project n fingerprint pore modeling.

digital image proc...digital image processingdoit4mehomeworkno attempt

am doing anisotropic pore model.for that i need to calculate ridge orientation and ridge frequency estimation.ridge frequency is calculating usind projection based mathod.can someone help me to write code for ridge frquency estimation

Best Answer

We can help you write the code if you can show us what you've done/tried so far, why it does/does not work, what you provide./[expect want] etc.

No we will not write the code for you from a vague description of a homework problem and no effort/attempt provided. "Please" goes a long way as well.

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MATLAB: Please, anyone who can handle with the warning message; (Warning: Explicit solution could not be found. > In solve at 169).

With this code:

syms x y z t real
Sa=2*pi*30^2*(1-sin(pi/18))+2*pi*t*(30*cos(pi/18)+(t/2)*tan(pi/18))/cos(pi/18);
Sa = simplify(Sa, 'steps', 10);
Sb=170^2-pi*30^2;
F=-0.3*Sa/(1+x)+((Sa*x^2)/(1+x)+(Sb*y^2)/(1+y))/2+z*(Sa/(1+x)+Sb/(1+y)-(170^2)/1.1);
F = simplify(F, 'steps',10);
[x,y,z,t] = solve((x^2)/2+x+0.3-z==0, (y^2)/2+y-z==0, (1+x)*((170^2)/(1.1)-(Sb)/(1+y))==Sa, F==0, [x, y, z, t])

and after several minutes (I didn’t time it), I got:

x =
-1.0
y =
-0.22540333075851662296414692004352
z =
-0.2
t =
-26.959447166136052326594445120517

MATLAB: Matrix dimension must agree

You do not initialize A2, and you only write up to p(1)-1 or p(2)-1 which is one row and one column smaller. Therefore A2 is smaller than a and you cannot subtract a-A2

You could probably rewrite your code using nlfilter()

Best Answer

Related Solutions

MATLAB: Please, anyone who can handle with the warning message; (Warning: Explicit solution could not be found. > In solve at 169).

MATLAB: Matrix dimension must agree

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