Image Crop Implementation with CV2

author: David Wang

Desription

An image crop operator implementation with OpenCV.

Code Example

Load a image from path './dog.jpg'.

Write the pipeline in simplified style:

import towhee

towhee.glob('./dog.jpg') \
  .image_decode.cv2() \
  .show()

Write a same pipeline with explicit inputs/outputs name specifications:

import towhee

towhee.glob['path']('./dog.jpg') \
  .image_decode.cv2['path', 'img']() \
  .select['img']() \
  .show()

Factory Constructor

Create the operator via the following factory method

image_decode.cv2()

Interface

An image decode operator takes an image path as input. It decodes the image back to ndarray.

Parameters:

img: str

​ Image file path.

Returns: towhee.types.Image (a sub-class of numpy.ndarray)

​ The decoded image data as numpy.ndarray.