When we apply an image data generator and set some feature, let’s say rotation… to increase in our data set, don’t we lose the previous result of the dataset because the image generator will rotate all the images… can’t we make a copy of the dataset and add new rotation data set in our previous result.
Not all images will be rotated since we specify rotation_range. Original image is therefore lost only when any of the specified augmentations happen. You can manually inspect images before and after calls to methods like flow_from_directory.