python - create image with multiple colors and add

Question

I am trying to create an image with some text in python like:

import PIL
from PIL import ImageFont
from PIL import Image
from PIL import ImageDraw
font = ImageFont.truetype("/usr/share/fonts/dejavu/DejaVuSans.ttf",25)
img=Image.new("RGBA", (200,200),(120,20,20))
draw = ImageDraw.Draw(img)
draw.text((0, 0),"This is a test",(255,255,0),font=font)
draw = ImageDraw.Draw(img)
img.save("test.png")

This works fine, although, I was unable to add more colors, for instance 3 different colors RED,YELLOW, GREEN that will be like a semaphore.

Also, can the image be transformed, for instance round the corners?

Many thanks

Answer 1

You can use the chord call at the ImageDraw.Draw class. You must pass this function four parameters, first one is position and size, described as an enclosing box, i.e. (x1, y1, x2, y2), second one is the start angle and the third one is the end angle; if you want a full circle you must specify 0 and 360, respectively. You can set the fill colour with a named parameter fill.

Better explained with an example:

import PIL
from PIL import ImageFont
from PIL import Image
from PIL import ImageDraw

font = ImageFont.truetype("/usr/share/fonts/truetype/DejaVuSans.ttf",25)
img=Image.new("RGBA", (200,200),(120,20,20))
draw = ImageDraw.Draw(img)
draw.text((0, 0),"This is a test",(255,255,0),font=font)
draw.chord((100, 75, 125, 100), 0, 360, fill='green')
draw.chord((75, 100, 100, 125), 0, 360, fill='blue')
draw.chord((125, 125, 150, 150), 0, 360, fill='yellow')
draw = ImageDraw.Draw(img)

img.save("test.png")