Today, I will show you how you can generate image and add text using Python. I was working on a project requires to generate an image for facebook og:image (featured image) and since this project is source code sharing tool adding a source code snippet into the featured image make sense.
I used this library on skypaste.com to generate the featured image like shown below:
This project requires Python Imaging Library (PIL). Install it by using the following command
Installing required library
pip install pillow
#!/usr/bin/env python from PIL import Image, ImageDraw, ImageFont import os, sys, getopt def main(argv): output_filename = "output.png" #Default output filename code = "" try: opts, args = getopt.getopt(argv,"i:o:",) except getopt.GetoptError: print("Parameter error") sys.exit(2) for opt, arg in opts: if opt == '-i': fo = open(arg, "r") lines = fo.readlines() for line in lines: tab_to_space_line = line.replace('\t', ' ') #Replace tab with spaces otherwise it will render without indentions code += tab_to_space_line fo.close() #Of course we need to close os.remove(arg) #Delete the file. elif opt == '-o': output_filename = arg #Use the user supplied output filename if given im = Image.new('RGBA', (1200, 600), (48, 10, 36, 255)) #Create a rectangular image with background color draw = ImageDraw.Draw(im) #Draw the image try: fontsFolder = '/usr/share/fonts/truetype' monoFont = ImageFont.truetype(os.path.join(fontsFolder, 'UbuntuMono-R.ttf'), 18) draw.text((10, 10), code, fill='white', font=monoFont) #Draw the text on image with true fonts except Exception as ex: draw.text((10, 10), code, fill='white') #Draw the text on image with default system fonts im.save(output_filename) #Save the image if __name__ == "__main__": main(sys.argv[1:])
Source code is also available on github at https://github.com/johnpili/python-text2image
./text2image -i source.cpp -o output.png
Learning and using Python is fun and easy. No wonder why it is one of the recommended programming language by senior developers. I will use both Python and Golang on my production projects now and in the future. Python comes with a lot of libraries that makes software development simple. I recommend that you read Automate the Boring Stuff with Python, 2nd Edition: Practical Programming for Total Beginners, this book will show you a lot of examples that will increase your productivity.