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captcha_example.png [R] captcha example (#6443) May 26, 2017

This is the R version of captcha recognition example by xlvector and it can be used as an example of multi-label training. For a captcha below, we consider it as an image with 4 labels and train a CNN over the data set.

You can download the images and .rec files from here. Since each image has 4 labels, please remember to use label_width=4 when generating the .rec files.