The dot itself is not an operator, .^ is. The .^ is a pointwise¹ (i.e. element-wise) power, as .* is the pointwise product. .^ Array power. A.^B is the matrix with elements A(i,j) to the B(i,j) power. The sizes of A and B must be the same or be compatible. C.f. “Array vs. Matrix Operations”: … Read more
It does element-by-element multiplication. Quoting Matlab help (or see online help): .* Array multiply.X.*Y denotes element-by-element multiplication. X and Y must have the same dimensions unless one is a scalar. A scalar can be multiplied into anything. For more information see @am304’s link above.
Check the fprintf. You can format your output just like you want. The error function will stop code execution. The display function only prints the value of the variable, without printing the variable name.
Warning This answer will not attempt to solve this programatically … Instead it focuses on letting Matlab do the eye crossing* for you however you still need to decide how far* to cross them… * this terminology sounds wrong but I’m just going to go with it Method Simply shifting the image and subtracting it from … Read more