问题
I'm attempting to write a program that places text onto an image, I'm trying to get my head round PIL and have run into the error: OSError: cannot open resource. This is my first python program so apologies if the error is obvious.
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
im = Image.open("example.jpg")
font_type = ImageFont.truetype("Arial.ttf", 18)
draw = ImageDraw.Draw(im)
draw.text(xy=(50, 50), text= "Text One", fill =(255,69,0), font = font_type)
im.show()
I get the error:
Traceback (most recent call last):
File "C:\Users\laurence.maskell\Desktop\attempt.py", line 7, in <module>
font_type = ImageFont.truetype("Arial.ttf", 18)
File "C:\Python34\lib\site-packages\PIL\ImageFont.py", line 259, in truetype
return FreeTypeFont(font, size, index, encoding, layout_engine)
File "C:\Python34\lib\site-packages\PIL\ImageFont.py", line 143, in __init__
self.font = core.getfont(font, size, index, encoding,
layout_engine=layout_engine)
OSError: cannot open resource
回答1:
I have also met this issue on Windows 10 Pro with PIL 5.3.0.
On my machine, the error is caused by non-ASCII font file names. If I change the the font name to only contain ASCII characters, I can open the font without any error.
Edit (2019-07-29): this is indeed a bug with ImageFont.truetype() method and it has been fixed in this pull request.
回答2:
from PIL import Image,ImageDraw,ImageFontim = Image.open("mak.png")
font_type = ImageFont.truetype("arial.ttf", 18)
draw = ImageDraw.Draw(im)
draw.text(xy=(120, 120), text= "download the font that you wanna use", fill =(255,69,0), font = font_type)
im.show()
Its "arial.ttf" not "Arial.ttf"
Here is the link to download arial.ttf font.
回答3:
I fixed the problem by using default font.
font = ImageFont.load_default()
If you just need to put some text (font style is not matter to you) then this might be a simple solution.
font = ImageFont.load_default()
draw = ImageDraw.Draw(pil_img)
draw.text(( 20, 32), "text_string", (255,0,0), font=font)
回答4:
PIL cannot find the specified font. Check that it exists, and that it is named with the exact same case. You can also try to copy it directly in the project folder.
回答5:
It didn't work for me because the font was not installed. Thanks to the answers given here it work now. Installation can be done here
回答6:
For Linux I used:
$ locate .ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-B.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-BI.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-C.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-L.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-LI.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-M.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-MI.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-R.ttf
/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-RI.ttf
/usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-B.ttf
/usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-BI.ttf
/usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-R.ttf
/usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-RI.ttf
It actually returned A LOT MORE than that!
Then I took the python code posted here in Stack Overflow:
- PIL: Generating Vertical Gradient Image
Plugged in the font name "Ubuntu-R.ttf" returned by locate:
color_palette = [BLUE, GREEN, RED]
image_w=200
image_h=200
region = Rect(0, 0, image_w, image_h)
imgx, imgy = region.max.x+1, region.max.y+1
image = Image.new("RGB", (imgx, imgy), WHITE)
draw = ImageDraw.Draw(image)
vert_gradient(draw, region, gradient_color, color_palette)
#image.text((40, 80),"No Artwork",(255,255,255))
#font = ImageFont.truetype(r'C:\Users\System-Pc\Desktop\arial.ttf', 40)
#font = ImageFont.load_default()
font = ImageFont.truetype("Ubuntu-R.ttf", int(float(image_w) / 6))
draw.text((int(image_w/12), int(image_h / 2.5)), "No Artwork", \
fill=(0,0,0), font=font)
image.show()
And voila! I now have an image to display when there is no image to display in a music file I'm playing:
来源：https://stackoverflow.com/questions/47694421/pil-issue-oserror-cannot-open-resource