Image Browser Error Receive for Image Data Store

I have an image datastore. I receive the following meesage when I want to use the ImageBrowser.

Thanks in advance for your help.

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Error in executing callback registered with ViewModel:

Error using images.internal.app.imageBrowser.web.ImageBrowserCore/warnIfLabelsPresent

Unable to resolve the name 'tool.App'.

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Answer 1

[TED MOSBY]

Hi @Fatih,

From the limited information provided, you may try the following hacks to resolve the error, it these doesn't resolve the error, then please share the code files and commands along with the datastore so that I can reproduce the issue at my end.

If you have a folder called +tool somewhere ahead of the MathWorks root folders on the MATLAB path, MATLAB looks there first and therefore never sees the internal tool.App class. This is the most common reason for the message. A quick check:

>> which -all tool.App

If the command lists a file inside your own project (or simply returns “tool.App not found”) you may have a path-ordering problem.

You can then try:

restoredefaultpath
rehash toolboxcache

Now try opening the "ImageBrowser" again:

imageBrowser(fullfile(matlabroot,'toolbox','images','imdata'));

If it still does not open, please do a clean installation of the latest version of MATLAB as the there might be damaged or incomplete installation. Refer to this MATLAB answer:

https://www.mathworks.com/support/search.html/answers/131519-how-do-i-perform-a-clean-installation-of-matlab.html?fq%5B%5D=asset_type_name:answer&fq%5B%5D=category:support/introduct1740&page=1

Hope this helps! Feel free to reply here if you still face issues.

[Fatih]

Thanks a lot for your help. Actually the image browser is working. When I want to view an image datastore (e.g. SnowDataStore, imageDatastorefy etc.), it returns this error.

Here is the code for my project. The last part works and shoes photos one-by-one. Thanks for your help in advance.

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clc; clear all; close all;

folderLocation = uigetdir("C:\Users\fatih.yigit\Drive'ım\Matlab\Coursera\Image Processing for Engineering and Science\Computer Vision for Engineering and Science\Data (1)\Data\MathWorks Images\Roadside Ground Cover");

%%First Part

imgDataStorefy = imageDatastore(folderLocation,"IncludeSubfolders",true,"LabelSource","foldernames");

[groundCoverTrain groundCoverTest] = splitEachLabel(imgDataStorefy, 0.85, "randomized");

[a b] = size(groundCoverTrain.Labels(groundCoverTrain.Labels == "Snow"));

a

%%Second Part

photo1 = imread("Data/MathWorks Images/Roadside Ground Cover/No Snow/RoadsideA_1.jpg");

img2hsv = rgb2hsv(photo1);

averageSaturationimg2hsv = mean(img2hsv(:, :, 2),"all");

stDSaturationimg2hsv = std(img2hsv(:, :, 2),1, "all");

%%Third Part

groundCoverTableTrain = extractSnowFeatures(groundCoverTrain);

snowVisible = groundCoverTableTrain((groundCoverTableTrain.label == "Snow"), :);

noSnowVisible = groundCoverTableTrain((groundCoverTableTrain.label == "No Snow"), :);

gscatter(snowVisible.intensityAvg, snowVisible.intensitySTD, [] ,"b",".");

hold on

gscatter(noSnowVisible.intensityAvg, noSnowVisible.intensitySTD,[], "r",".");

hold off

xlabel("Mean Saturation")

ylabel("St. Dev. Saturation")

legend("Snow","No Snow")

%For Graded Exam 2

groundCoverTableTest = extractSnowFeatures(groundCoverTest);

%%Creating an ImageDataStore for only Snows

allFiles = imgDataStorefy.Files

allLabels = imgDataStorefy.Labels

snowFiles = allFiles(allLabels=="Snow");

x2 = imageDatastore(snowFiles, Labels=allLabels(allLabels=="Snow"))

%%

snowFileNames = snowVisible.imgName;

[a1, name1, ext1] = fileparts(snowFileNames);

[a1, name2, ext2] = fileparts(imgDataStorefy.Files);

[~, idx] = ismember(name1, name2);

snowDataStore = subset(imgDataStorefy, idx(idx ~= 0));

datastoreName = input("Please Select the DataStore- ") %%snowDataStore

while hasdata(datastoreName)

img = read(datastoreName) ;

pause(2)% read image from datastore

figure, imshow(img); % creates a new window for each image

end

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