How to fix error:Unrecognized method, property, or field 'imageFilename' for class 'groundTruth'. ?

Question

yasmin ismail 2023-10-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2033069-how-to-fix-error-unrecognized-method-property-or-field-imagefilename-for-class-groundtruth

回答： Steven Lord 2023-10-13

label7027_157.mat

I am new biggener in image processing, I used iamge labeler App and I export the labeled image, then I would like to calculate the similarity :

load('label7027_157.mat')

gTruth

ix=contains(gTruth.imageFilename,'LabelData');

A = logical(imread('7027-157.png'));% look up which is the desired file

BW_groundTruth=logical(imread(gTruth.imageFilename{ix})); % read that image file.

similarity = jaccard(squeeze(A(:,:,1)), BW_groundTruth)

gTruth =

groundTruth with properties:

DataSource: [1×1 groundTruthDataSource]

LabelDefinitions: [1×6 table]

LabelData: [1×1 table]

Unrecognized method, property, or field 'imageFilename' for class 'groundTruth'.

Error in trial2 (line 3)

ix=contains(gTruth.imageFilename,'LabelData');

How to fix this error?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Steven Lord 2023-10-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2033069-how-to-fix-error-unrecognized-method-property-or-field-imagefilename-for-class-groundtruth#answer_1332854

Nowhere on the documentation page for the groundTruth object does the identifier "imageFilename" appear (except in an example as one of the variables in the table array named stopSignsAndCars in the MAT-file stopSignsAndCars.mat.) It is not a property of groundTruth objects.

Is there something on a documentation page or in an example that led you to believe that object has such a property? If so please post a link to that documentation page or example so we can determine if that needs to be corrected or clarified.