CNN: looking for image semantic segmentation examples for R keras

Machine Learning and Modeling
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Hello,

I'm having a hard time finding an example of how to implement a convolutional neural network for image semantic segmentation in R. An example of such a network is a U-Net developed by Olaf Ronneberger, Philipp Fischer and Thomas Brox. Specifically I'm having difficulties understanding how I can load batches of images and corresponding masks into the neural network.

In my case the images are stored as .jpg files in a directory and the masks as data frames in R.
One image can have multiple masks, but I would be already happy if I can train a neural network with one mask per image.

A good example would have been this: unet_example
Unfortunately, running this example on my computer yields an error for which I have created an issue here: keras_team_issue.

Can anyone point me to some good beginner resources, preferably R-code?

Please, don't make me have to turn to Python... :wink:

Many thanks!

Denis

edit: typos

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For someone else who might be looking for the thing,

Daniel Falbel from RStudio suggested me the following resource which I liked:

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