How to change imgae in imageLabelingSession.mat file
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I have used Image labeler App to mark the labels. I saved the imageLabelingSession file and PixelLabelData files. Now I want to apply same PixelLabelData (groundtruth images) on other images which has same structure but different in terms of parameters(i used image processing method on thses images).
How can I repalce the image files in imageLabelingSession with out marking again.
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Raunak Gupta
le 2 Oct 2020
Hi,
I assume after doing the labeling you have exported the labels as a groundTruth object. The groundTruth object contains three field DataSource, LabelDefinitions and LabelData. You can replace the groundTruth.DataSource with a groundTruthDataSource object. This can be created by reading the replacement images into imageDatastore.
Below example code explains above steps:
% load groundTruth object created from exported labels
load groundTruth
% replaceImagedir :- directory where replacement images are stored
replaceImds = imageDatastore(replaceImagedir);
replaceDataSource = groundTruthDataSource(replaceImds);
% Replacing the Datasource to the new images
groundTruth.DataSource = replaceDataSource;
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Raunak Gupta
le 6 Oct 2020
Hi,
I think dot indexing is not supported to replace the property in groundTruth object. You can either use below command or a standalone function which can replace links.
newgroundTruth = groundTruth(replaceDataSource,oldgroundTruth.LabelDefinitions,oldgroundTruth.LabelData);
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