Hi, I have a bar phantom image attached that I want to convolve with the 2d function h1(x,y)=e^(-5x^2-5y^2). I'm not very familiar with Matlab or similar programs so bear with me.
I have created and plotted the function h1 using the following code:
x = [-1: .01: 1]; y = [-1: .01: 1]; [x_,y_] = meshgrid(x,y); h1_ = exp((-5.*x_.^2)-(5.*y_.^2)); surf(x_,y_,h1_)
I then inserted the bar phantom image into Matlab using:
I = imread('bar phantom1.png');
From here I'm stuck and I've tried a number of things unsuccessfully. I've tried:
H1_ = abs(fft2(h1_)); I1 = abs(fft2(I)); g = ifft2(H1_.*I1);
And get the error: Array dimensions must match for binary array op.
I tried changing the dimensions of my x and y variables to match the dimensions of my image but the result g is a blank white image.
I also played tried to avoid using fft2 using imfilter, double, and conv2 but only got all white or black resulting images. Any help would be greatly appreciated.