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added lab->srgb and srgb->lab->srgb tests

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wiredfool 2013-10-11 23:39:16 -07:00
parent ace78d0734
commit 215b61aadf
1 changed files with 22 additions and 0 deletions
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22
Tests/test_imagecms.py
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@ -108,3 +108,25 @@ def test_lab_color():
target = Image.open('Tests/images/lena.Lab.tif')
assert_image_similar(i, target, 1)
def test_lab_srgb():
pLab = ImageCms.createProfile("LAB")
t = ImageCms.buildTransform(pLab, SRGB, "LAB", "RGB")
img = Image.open('Tests/images/lena.Lab.tif')
img_srgb = ImageCms.applyTransform(img, t)
assert_image_similar(lena(), img_srgb, 1)
def test_lab_roundtrip():
# check to see if we're at least internally consistent.
pLab = ImageCms.createProfile("LAB")
t = ImageCms.buildTransform(SRGB, pLab, "RGB", "LAB")
t2 = ImageCms.buildTransform(pLab, SRGB, "LAB", "RGB")
i = ImageCms.applyTransform(lena(), t)
out = ImageCms.applyTransform(i, t2)
assert_image_similar(lena(), out, 2)