{"id":1467,"date":"2018-10-20T19:07:05","date_gmt":"2018-10-20T17:07:05","guid":{"rendered":"https:\/\/pythonprogramming.altervista.org\/?p=1467"},"modified":"2019-08-07T07:44:56","modified_gmt":"2019-08-07T05:44:56","slug":"make-an-image-with-text-with-python","status":"publish","type":"post","link":"https:\/\/pythonprogramming.altervista.org\/make-an-image-with-text-with-python\/","title":{"rendered":"Make an Image with text with Python"},"content":{"rendered":"

Create an image with PIL<\/h1>\n

Python<\/strong> is great at many things, expecially for repetitive things. We can use it to gain a lot of time, and we all are aware that today time is the most evaluable thing, because things go faster faster in today’s life.<\/p>\n

\"Related<\/p>\n

A practical example: make an image<\/h2>\n

In this code we will create images. From scratch. I thought to make this code to use it on the web pages to enphatize something with a nice image of a text. This code will show you a nice red rectangle.<\/p>\n

Image.new<\/h2>\n

This will create a new image with color size and color as attributes.<\/p>\n

Image.save<\/h2>\n

This save the image create with new.<\/p>\n

from PIL import Image, ImageDraw\r\nimport os\r\n\r\n# name of the file to save\r\nfilename = \"img01.png\"\r\n\r\n# create new image\r\nimage = Image.new(mode = \"RGB\", size = (200,70), color = \"red\")\r\n\r\n# save the file\r\nimage.save(filename)\r\n\r\n# open the file\r\nos.system(filename)<\/pre>\n
Write some text in it<\/h2>\n
Now we must use the ImageDraw.Draw<\/strong> class of PIL. The istance will be called draw<\/strong> (with a lot of fantasy).<\/p>\n
ImageDraw.Draw<\/h2>\n
We will put as argument of this class the image object created with Image.new<\/strong>.<\/p>\n
text<\/h2>\n
Finally we will use the method text<\/strong> of the ImageDraw.Draw object created to add the text to the image. This takes as arguments the position (a tuple), the text (string) and another tuple for the color.<\/p>\n
The complete code<\/h2>\n
from PIL import Image, ImageDraw, ImageFont\r\nimport os\r\n\r\n# name of the file to save\r\nfilename = \"img01.png\"\r\nfnt = ImageFont.truetype('arial.ttf', 15)\r\n# create new image\r\nimage = Image.new(mode = \"RGB\", size = (200,70), color = \"red\")\r\ndraw = ImageDraw.Draw(image)\r\ndraw.text((10,10), \"My Text\", font=fnt, fill=(255,255,0))\r\nimage.save(filename)\r\n\r\nos.system(filename)<\/pre>\n
\"The<\/a>
The text on the created red image<\/figcaption><\/figure>\n
A function to make changes easy<\/h2>\n
from PIL import Image, ImageDraw, ImageFont\r\nimport os\r\n\r\ndef text_on_img(filename='01.png', text=\"Hello\", size=12):\r\n\t\"Draw a text on an Image, saves it, show it\"\r\n\tfnt = ImageFont.truetype('arial.ttf', 52)\r\n\t# create image\r\n\timage = Image.new(mode = \"RGB\", size = (200,70), color = \"red\")\r\n\tdraw = ImageDraw.Draw(image)\r\n\t# draw text\r\n\tdraw.text((10,10), text, font=fnt, fill=(255,255,0))\r\n\t# save file\r\n\timage.save(filename)\r\n\t# show file\r\n\tos.system(filename)\r\n\r\n\r\ntext_on_img(text=\"Text\", size=52)<\/pre>\n
Let’s adapt the width of the img to the lenght of the text<\/h2>\n
from PIL import Image, ImageDraw, ImageFont\r\nimport os\r\n\r\ndef text_on_img(filename='01.png', text=\"Hello\", size=12):\r\n\t\"Draw a text on an Image, saves it, show it\"\r\n\tfnt = ImageFont.truetype('arial.ttf', size)\r\n\t# create image\r\n\timage = Image.new(mode = \"RGB\", size = (int(size\/2)*len(text),size+50), color = \"red\")\r\n\tdraw = ImageDraw.Draw(image)\r\n\t# draw text\r\n\tdraw.text((10,10), text, font=fnt, fill=(255,255,0))\r\n\t# save file\r\n\timage.save(filename)\r\n\t# show file\r\n\tos.system(filename)\r\n\r\n\r\ntext_on_img(text=\"Text to write on img\", size=300)<\/pre>\n
\"\"<\/a><\/p>\n
Let’s make background and color avaiable<\/h2>\n
from PIL import Image, ImageDraw, ImageFont\r\nimport os\r\n\r\ndef text_on_img(filename='01.png', text=\"Hello\", size=12, color=(255,255,0), bg='red'):\r\n\t\"Draw a text on an Image, saves it, show it\"\r\n\tfnt = ImageFont.truetype('arial.ttf', size)\r\n\t# create image\r\n\timage = Image.new(mode = \"RGB\", size = (int(size\/2)*len(text),size+50), color = bg)\r\n\tdraw = ImageDraw.Draw(image)\r\n\t# draw text\r\n\tdraw.text((10,10), text, font=fnt, fill=(255,255,0))\r\n\t# save file\r\n\timage.save(filename)\r\n\t# show file\r\n\tos.system(filename)\r\n\r\n\r\ntext_on_img(text=\"Text to write on img\", size=300, bg='red')<\/pre>\n
 <\/p>\n
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