Array indices must be positive integers or logical values in facial detection

Good afternoon,

I am not sure why i am getting this error returned when i am using the following code;

faceDetector = 'vision.CascadeObjectDetector';
I = imread('INSERT PICTURE LOCATION HERE');
bboxes = faceDetector(I);
IFaces = insertObjectAnnotation(I,'rectangle',bboxes,'Face');   
figure
imshow(IFaces)
title('Detected faces');

I am not sure what this error means as the pixel values i am using are all positive values so I am very confused. What can I do to achieve a successful output?

Thanks.

[Geoff Hayes]

Evan - please copy and paste the full error message to this question so that we can see which line of code is throwing the error.

Answer 1

[Shashank Gupta]

Hi Evan,

I think you got confused in defining a facedetector. Check out the following code, this might help you.

faceDetector = vision.CascadeObjectDetector(); % Correct way to define this object.
I = imread('INSERT PICTURE LOCATION HERE'); % Read an image.
bboxes = faceDetector(I); % call the function.
IFaces = insertObjectAnnotation(I,'rectangle',bboxes,'Face');   
figure
imshow(IFaces)
title('Detected faces');

Also check out this resource page in case you stuck somewhere.

I hope this helps.

Cheers.