Can't index images with imageIndex

I try to run this code:

queryImage = imread('clutteredDesk.jpg');
queryROI = [130 175 330 365];
Use the imrect function to select an ROI interactively
queryROI = getPosition(imrect)

figure
imshow(queryImage)
rectangle('Position',queryROI,'EdgeColor','yellow')

imageIndex = indexImages(imgSet,'Verbose',false);
imageIDs = retrieveImages(queryImage,imageIndex,'ROI',queryROI)

However, I get such error:

_ *Undefined function 'invertedImageIndex' for input arguments of type 'bagOfFeatures'.

Error in retrieve_images (line 41) imageIndex = invertedImageIndex(bag);*_

Answer 1

[Jayanti]

Hi Sapio,

This error is sometimes produced if you don't have the right toolbox installed for the function. You can try typing following in the command window:

help invertedImageIndex

If it prompts you to have certain toolbox for the function to work, install the toolbox through the link provided.

Hope this will be useful!