mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-21 19:38:57 +03:00
83 lines
2.0 KiB
Python
83 lines
2.0 KiB
Python
|
from tester import *
|
||
|
|
|
||
|
|
from PIL import Image
|
||
|
|
|
||
|
|
try:
|
||
|
|
from PIL import _webp
|
||
|
|
except:
|
||
|
|
skip('webp support not installed')
|
||
|
|
|
||
|
|
|
||
|
|
if _webp.WebPDecoderBuggyAlpha():
|
||
|
|
skip("Buggy early version of webp installed, not testing transparency")
|
||
|
|
|
||
|
|
def test_read_rgba():
|
||
|
|
# Generated with `cwebp transparent.png -o transparent.webp`
|
||
|
|
file_path = "Images/transparent.webp"
|
||
|
|
image = Image.open(file_path)
|
||
|
|
|
||
|
|
assert_equal(image.mode, "RGBA")
|
||
|
|
assert_equal(image.size, (200, 150))
|
||
|
|
assert_equal(image.format, "WEBP")
|
||
|
|
assert_no_exception(lambda: image.load())
|
||
|
|
assert_no_exception(lambda: image.getdata())
|
||
|
|
|
||
|
|
orig_bytes = image.tobytes()
|
||
|
|
|
||
|
|
target = Image.open('Images/transparent.png')
|
||
|
|
assert_image_similar(image, target, 20.0)
|
||
|
|
|
||
|
|
|
||
|
|
def test_write_lossless_rgb():
|
||
|
|
temp_file = tempfile("temp.webp")
|
||
|
|
#temp_file = "temp.webp"
|
||
|
|
|
||
|
|
pil_image = lena('RGBA')
|
||
|
|
|
||
|
|
mask = Image.new("RGBA", (64, 64), (128,128,128,128))
|
||
|
|
pil_image.paste(mask, (0,0), mask) # add some partially transparent bits.
|
||
|
|
|
||
|
|
pil_image.save(temp_file, lossless=True)
|
||
|
|
|
||
|
|
image = Image.open(temp_file)
|
||
|
|
image.load()
|
||
|
|
|
||
|
|
assert_equal(image.mode, "RGBA")
|
||
|
|
assert_equal(image.size, pil_image.size)
|
||
|
|
assert_equal(image.format, "WEBP")
|
||
|
|
assert_no_exception(lambda: image.load())
|
||
|
|
assert_no_exception(lambda: image.getdata())
|
||
|
|
|
||
|
|
|
||
|
|
assert_image_equal(image, pil_image)
|
||
|
|
|
||
|
|
def test_write_rgba():
|
||
|
|
"""
|
||
|
|
Can we write a RGBA mode file to webp without error. Does it have the bits we
|
||
|
|
expect?
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
temp_file = tempfile("temp.webp")
|
||
|
|
|
||
|
|
pil_image = Image.new("RGBA", (10, 10), (255, 0, 0, 20))
|
||
|
|
pil_image.save(temp_file)
|
||
|
|
|
||
|
|
if _webp.WebPDecoderBuggyAlpha():
|
||
|
|
return
|
||
|
|
|
||
|
|
image = Image.open(temp_file)
|
||
|
|
image.load()
|
||
|
|
|
||
|
|
assert_equal(image.mode, "RGBA")
|
||
|
|
assert_equal(image.size, (10, 10))
|
||
|
|
assert_equal(image.format, "WEBP")
|
||
|
|
assert_no_exception(image.load)
|
||
|
|
assert_no_exception(image.getdata)
|
||
|
|
|
||
|
|
assert_image_similar(image, pil_image, 1.0)
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|