Grabbing camera frames from the serial port with Python

In the previous recipe, we showed how to take images from the OV7670, but we didn’t provide a method to display them. Therefore, it is now the time to implement a Python script locally to read the pixel values transmitted serially and show the resulting image on the screen.

Getting ready

In this recipe, we will develop a Python script locally to create images from the data transmitted over the serial. To facilitate this task, we will need two main Python libraries:

• pySerial, which allows us to read the data transmitted serially
• Pillow (https://pypi.org/project/Pillow), which enables us to create image files from the received data

The Pillow library is a fork of the Python Imaging Library (PIL) and can be installed with the following pip command:

$ pip install Pillow

Using the fromarray() method provided by this library, we can generate images from NumPy arrays that hold...