Unexpected matlab expression error

function runSaliency('AloeR_SLIC.jpg')

declareGlobal;

% initialize the Image structure if necessary
if (isa('AloeR_SLIC.jpg','struct'))
  img = 'AloeR_SLIC.jpg';
else

In the above code i get an error of unexpected matlab expression at line "function runSaliency('AloeR_SLIC.jpg')". The error is shown at the place where imagename is given. How should i solve this?

Answer 1

[James Tursa]

For function definitions, you need to have variable names for the input argument list, not explicit values. E.g., this line

function runSaliency('AloeR_SLIC.jpg')

should look something like this instead

function runSaliency(image_file_name)

where image_file_name is the name of the input variable to the function.

Then downstream in your code, this stuff

if (isa('AloeR_SLIC.jpg','struct'))
  img = 'AloeR_SLIC.jpg';

should look something like this instead

if (isa(image_file_name,'struct'))
  img = 'AloeR_SLIC.jpg';

[Steven Lord]

To supplement James's explanation, you specify the specific file name you want to process when you call runSaliency, not when you define runSaliency.

>> runSaliency('AloeR_SLIC.jpg')