Update README.md

README.md

@@ -7,7 +7,33 @@ pip install imageflow
 ```
 
 Usage:
-[Will be updated soon]
+
+```python
+import imageflow
+```
+
+#### Convert a directory of images and their labels to `.tfrecords`
+Just calling the following function will make a `filename.tfrecords` file in the directory `converted_data` in your projects root(where you call this method).
+
+```python
+convert_images(images, labels, filename)
+```
+
+The `images` should be an array of shape `[-1, height, width, channel]` and has the same rows as the `labels`
+
+#### Read distorted and normal dta from `.tfrecords` in multi-thread manner:
+```python
+# Distorted images for training
+images, labels = distorted_inputs(filename='../my_data_raw/train.tfrecords', batch_size=FLAGS.batch_size,
+                                      num_epochs=FLAGS.num_epochs,
+                                      num_threads=5, imshape=[32, 32, 3], imsize=32)
+
+# Normal images for validation
+val_images, val_labels = inputs(filename='../my_data_raw/validation.tfrecords', batch_size=FLAGS.batch_size,
+                                    num_epochs=FLAGS.num_epochs,
+                                    num_threads=5, imshape=[32, 32, 3])
+```
+
 
 Dependencies: