The above-mentioned scenario(Peter provided) assumes that validation_dir is a parameter of the function of test_datagen.flow_from_directory(). So the logic is that the test_dir just has one-level folder structure(./test/image) that you provided in the weblink.

test_datagen.flow_from_directory( validation_dir,...) is a method cascading that is syntax which allows multiple methods to be called on the same object. In this way, you can use the function of flow_from_directory().

The above-mentioned scenario(Peter provided) assumes that validation_dir is a parameter of the function of test_datagen.flow_from_directory(). So the logic is that the test_dir just has the one-one folder structure(./test/folder/image) that you provided in the weblink.

test_datagen.flow_from_directory( validation_dir,...) is a method cascading that is syntax which allows multiple methods to be called on the same object. In this way, you can use the function of flow_from_directory().

The above-mentioned scenario(Peter provided) assumes that validation_dir is a parameter of the function of test_datagen.flow_from_directory(). So the logic is that the test_dir just has one-level folder structure(./test/image) that you provided in the weblink(https://mc.ai/tutorial-image-classification-with-keras-flow_from_directory-and-generators/).

test_datagen.flow_from_directory( validation_dir,...) is a method cascading that is syntax which allows multiple methods to be called on the same object. In this way, you can use the function of flow_from_directory().

The above-mentioned scenario(Peter provided) assumes that validation_dir is a parameter of the function of test_datagen.flow_from_directory(). So the logic is that the test_dir just has one-level folder structure(./test/image) that you provided in the weblink.

test_datagen.flow_from_directory( validation_dir,...) is a method cascading that is syntax which allows multiple methods to be called on the same object. In this way, you can use the function of flow_from_directory().