I am confused what is wrong with my code

move = input('Enter the name of the image: ', 's');

function [board_game1] = AnalyzeScreenshot(name)

pic = imread(move);
board_game1 = zeros(4,4);
[p,q,r] = size(pic);
binary = false(p,q);

for ii = 1:p %locating board
    for jj = 1:q
        if pic(ii,jj,1) == 187&&pic(ii,jj,2) == 173&&pic(ii,jj,3) ==160
            binary(ii,jj) =1;
            x = ii;
            y = jj;
            break
        end
    end
    if binary(ii, jj) == 1
        break
    end
end
play = imread(binary); %fill the matrix with the tile values
bhor = 1;
bver = 1;
for ii = 19:121:380
    bhor = 1;
    for jj = 10:121:373
        if play(ii,jj,1) == 238 && game(ii,jj,2) == 228 && game(ii,jj,3) == 218
            square = 2;
            board_game1(bhor,bver) = 2;
        elseif play(ii,jj,1) == 237 && game(ii,jj,2) == 224 && game(ii,jj,3) == 200
            square = 4;
            board_game1(bhor,bver) = 4;
        elseif game(ii,jj,1) == 242 && game(ii,jj,2) == 177 && game(ii,jj,3) == 121
            square = 8;
            board_game1(bhor,bver) = 8;
        elseif game(ii,jj,1) == 245 && game(ii,jj,2) == 149 && game(ii,jj,3) == 99
            square = 16;
            board_game1(bhor,bver) = 16;
        elseif game(ii,jj,1) == 246 && game(ii,jj,2) == 124 && game(ii,jj,3) == 95
            square = 32;
            board_game1(bhor,bver) = 32;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 207 && game(ii,jj+5,3) == 120
            square = 128;
            board_game1(bhor,bver) = 128;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 204 && game(ii,jj+5,3) == 97
            square = 256;
            board_game1(bhor,bver) = 256;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 200 && game(ii,jj+5,3) == 80
            square = 512;
            board_game1(bhor,bver) = 512;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 197 && game(ii,jj+5,3) == 63
            square = 1024;
            board_game1(bhor,bver) = 1024;
        else
            board_game1(bhor,bver) = 0;
        end
        if bhor == 4 %input the correct places in matrix
            bver = 3;
        end
        bhor = bhor+1;
    end
    if bver == 4
        bver = 3;
    end
    bver = bver +1;
    board_game1 = board_game1(bhor,bver);
end
disp(board_game1);
end

[Daniel]

This question can't be answered without more information. For instance, what was the error? What was the command that invoked the error?

The code provided is also a mix of function definitions and script commands (since the first line is not in the form "function [outputs] = function(inputs)", but that syntax appears later). So it can't be pasted directly into a .m file and can't be executed directly from the console.

Answer 1

[KSSV]

You need to input the image move to the function.

move = input('Enter the name of the image: ', 's');
[board_game1] = AnalyzeScreenshot(move) ; 

function [board_game1] = AnalyzeScreenshot(move)  %<--- chage the variable name to move 

pic = imread(move);
board_game1 = zeros(4,4);
[p,q,r] = size(pic);
binary = false(p,q);

for ii = 1:p %locating board
    for jj = 1:q
        if pic(ii,jj,1) == 187&&pic(ii,jj,2) == 173&&pic(ii,jj,3) ==160
            binary(ii,jj) =1;
            x = ii;
            y = jj;
            break
        end
    end
    if binary(ii, jj) == 1
        break
    end
end
% play = imread(binary); %fill the matrix with the tile values  %<-----
% what is this? Why you are reading a binary matrix which is intilaized? 
play = binary ; 
bhor = 1;
bver = 1;
% The variable game is not defined wny where....is it a function? 
for ii = 19:121:380
    bhor = 1;
    for jj = 10:121:373
        if play(ii,jj,1) == 238 && game(ii,jj,2) == 228 && game(ii,jj,3) == 218
            square = 2;
            board_game1(bhor,bver) = 2;
        elseif play(ii,jj,1) == 237 && game(ii,jj,2) == 224 && game(ii,jj,3) == 200
            square = 4;
            board_game1(bhor,bver) = 4;
        elseif game(ii,jj,1) == 242 && game(ii,jj,2) == 177 && game(ii,jj,3) == 121
            square = 8;
            board_game1(bhor,bver) = 8;
        elseif game(ii,jj,1) == 245 && game(ii,jj,2) == 149 && game(ii,jj,3) == 99
            square = 16;
            board_game1(bhor,bver) = 16;
        elseif game(ii,jj,1) == 246 && game(ii,jj,2) == 124 && game(ii,jj,3) == 95
            square = 32;
            board_game1(bhor,bver) = 32;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 207 && game(ii,jj+5,3) == 120
            square = 128;
            board_game1(bhor,bver) = 128;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 204 && game(ii,jj+5,3) == 97
            square = 256;
            board_game1(bhor,bver) = 256;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 200 && game(ii,jj+5,3) == 80
            square = 512;
            board_game1(bhor,bver) = 512;
        elseif game(ii,jj+5,1) == 237 && game(ii,jj+5,2) == 197 && game(ii,jj+5,3) == 63
            square = 1024;
            board_game1(bhor,bver) = 1024;
        else
            board_game1(bhor,bver) = 0;
        end
        if bhor == 4 %input the correct places in matrix
            bver = 3;
        end
        bhor = bhor+1;
    end
    if bver == 4
        bver = 3;
    end
    bver = bver +1;
    board_game1 = board_game1(bhor,bver);
end
disp(board_game1);
end

Answer 2

[Walter Roberson]

move = input('Enter the name of the image: ', 's');

That defines a variable inside the "base" workspace.

function [board_game1] = AnalyzeScreenshot(name)

That starts the definition of a function named AnalyzeScreenshot that accepts at most one input parameter, an which returns at most one output parameter.

This function line does not invoke the function, it only starts the definition of the function. It especially does not invoke the function passing in the value of move

pic = imread(move);

This is inside the function, and you are trying to use the value of move . But move has not been assigned a value inside the function, and move is not the name of any parameter passed into the function, and move is not the name of any shared variable (shared variables only apply to nested functions.) So move is not a variable known to the function. MATLAB will then look to see whether there is a function named move that should be invoked at this point; it will probably not find such a function. MATLAB would therefore complain about unknown function or variable move