% Emulates the picture taking process of a photo on a plane from a camera with matrix P:

function [im] = takePictureUsingImgFormationMat(F,width,height,photo,sigma)
    
    % Blurr the photo in the plane:
    photo = blurrImage(photo, sigma);
    
    % Get the image from the photo:
    im = F * photo(:);
    im = reshape(im,height,width);
