how do u draw a Transparent line on an image with PIL?

Question

here's what I got:

draw.line([(x1,y1),(x2,y2)],fill = (255, 255, 255))

the result is a white line, but I want a transparent one, what should I do?

You want to draw a line in [transparent ink](https://www.youtube.com/watch?v=BKorP55Aqvg)? — TigerhawkT3, Jan 04 '17 at 03:06
You might want to try Googling your question's exact title, by the way. I did that and found several useful results. — TigerhawkT3, Jan 04 '17 at 03:21

score 5 · Accepted Answer · answered Jan 04 '17 at 03:11

5

The line function takes either an RGB or an RGBA value to my knowledge.

Try:

draw.line([(x1,y1),(x2,y2)],fill = (255, 255, 255, 0))

answered Jan 04 '17 at 03:11

kaipatel

it's RGBA that makes it transparent. – user1448371 Sep 08 '19 at 18:50
This only seems to work when the image itself is RGBA. Even then, drawing a transparent line over another doesn't blend their values... – 2080 Sep 18 '20 at 13:42

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