Error: Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

pleas help me where is the problem

>> F = imread("E:\PELAJAR\Unnes\PC\citra-grayscale2.jpg");

[tinggi, lebar] = size(F);

sudut = 5; % Sudut pemutaran

rad = pi * sudut/180;

cosa = cos(rad);

sina = sin(rad);

F2 = double(F);

m = floor(tinggi / 2);

n = floor(lebar / 2);

for y=1 : tinggi

for x=1 : lebar

x2 = (x-n) * cosa + (y-m) * sina + n;

y2 = (y-m) * cosa - (x-n) * sina + m;

if (x2>=1) && (x2<=lebar) && ...

(y2>=1) && (y2<=tinggi)

% Lakukan interpolasi bilinear

p = floor(y2);

q = floor(x2);

a = y2-p;

b = x2-q;

if (x2==lebar) || (y2 == tinggi)

G(y, x) = F(y2, x2);

else

intensitas = (1-a)*((1-bF(p,q) + ...

b * F(p, q+1)) + ...

a *((1-b)* F(p+1, q) + ...

b * F(p+1, q+1));

G(y, x) = intensitas;

end

else

G(y, x) = 0;

end

end

end

G = uint8(G);

figure(1); imshow(G);

clear all;

b * F(p+1, q+1));

↑

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check

for mismatched delimiters.

[Stephen23]

MATLAB has already underlined the syntax error for you:

Always pay attention to the syntax checking, it helps you.

Answer 1

[Voss]

I think that line should be like this:

intensitas = (1-a)*((1-b)*F(p,q) + ...
b * F(p, q+1)) + ...
a *((1-b)* F(p+1, q) + ...
b * F(p+1, q+1));

In other words, bF should be b)*F

[Aldi Fahrezi]

tahnkyou so much it worked

[Voss]

You're welcome!