def test_saturate_greater_than_1():
im = util.fill((4, 4), [174, 56, 3])
saturated_im = css.saturate(im, 2)
saturateed_im2 = css.saturate(im, 1)
assert list(saturated_im.getdata()) != list(saturateed_im2.getdata())
assert saturated_im.size == im.size
assert saturated_im.mode == im.mode
def test_saturate_1():
im = util.fill((4, 4), [174, 56, 3])
saturated_im = css.saturate(im, 1)
saturated_im2 = css.saturate(im)
assert list(saturated_im.getdata()) == list(saturated_im2.getdata())
assert saturated_im.size == im.size
assert saturated_im.mode == im.mode
def test_saturate_hsv():
im = util.fill((4, 4), [174, 56, 3])
im2 = im.convert('HSV')
saturated_im = css.saturate(im)
saturated_im2 = css.saturate(im2)
saturated_im2_rgb = saturated_im2.convert('RGB')
assert list(saturated_im.getdata()) == list(saturated_im2_rgb.getdata())
assert saturated_im2.size == im2.size
assert saturated_im2.mode == im2.mode
def rise(im):
"""Applies Rise filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs1 = util.fill(cb.size, [236, 205, 169, .15])
cm1 = css.blending.multiply(cb, cs1)
cs2 = util.fill(cb.size, [50, 30, 7, .4])
cm2 = css.blending.multiply(cb, cs2)
gradient_mask1 = util.radial_gradient_mask(cb.size, length=.55)
cm = Image.composite(cm1, cm2, gradient_mask1)
cs3 = util.fill(cb.size, [232, 197, 152, .8])
cm3 = css.blending.overlay(cm, cs3)
gradient_mask2 = util.radial_gradient_mask(cb.size, scale=.9)
cm_ = Image.composite(cm3, cm, gradient_mask2)
cr = Image.blend(cm, cm_, .6) # opacity
cr = css.brightness(cr, 1.05)
cr = css.sepia(cr, .2)
cr = css.contrast(cr, .9)
cr = css.saturate(cr, .9)
return cr
def mayfair(im):
"""Applies Mayfair filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
size = cb.size
pos = (.4, .4)
cs1 = util.fill(size, [255, 255, 255, .8])
cm1 = css.blending.overlay(cb, cs1)
cs2 = util.fill(size, [255, 200, 200, .6])
cm2 = css.blending.overlay(cb, cs2)
cs3 = util.fill(size, [17, 17, 17])
cm3 = css.blending.overlay(cb, cs3)
mask1 = util.radial_gradient_mask(size, scale=.3, center=pos)
cs = Image.composite(cm1, cm2, mask1)
mask2 = util.radial_gradient_mask(size, length=.3, scale=.6, center=pos)
cs = Image.composite(cs, cm3, mask2)
cr = Image.blend(cb, cs, .4) # opacity
cr = css.contrast(cr, 1.1)
cr = css.saturate(cr, 1.1)
return cr
def nashville(im):
"""Applies Nashville filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs1 = util.fill(cb.size, [247, 176, 153])
cm1 = ImageChops.darker(cb, cs1)
cm1 = Image.blend(cb, cm1, .56)
cs2 = util.fill(cb.size, [0, 70, 150])
cm2 = ImageChops.lighter(cm1, cs2)
cr = Image.blend(cm1, cm2, .4)
cr = css.sepia(cr, .2)
cr = css.contrast(cr, 1.2)
cr = css.brightness(cr, 1.05)
cr = css.saturate(cr, 1.2)
return cr
def test_saturate_0():
im = util.fill((4, 4), [174, 56, 3])
saturated_im = css.saturate(im, 0)
grayscaled_im = css.grayscale(im)
assert list(saturated_im.getdata()) == list(grayscaled_im.getdata())
assert saturated_im.size == im.size
assert saturated_im.mode == im.mode
def clarendon(im):
"""Applies Clarendon filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [127, 187, 227, .2])
cr = css.blending.overlay(cb, cs)
cr = css.contrast(cr, 1.2)
cr = css.saturate(cr, 1.35)
return cr
def stinson(im):
"""Applies Stinson filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [240, 149, 128, .2])
cr = css.blending.soft_light(cb, cs)
cr = css.contrast(cr, .75)
cr = css.saturate(cr, .85)
cr = css.brightness(cr, 1.15)
return cr
def _1977(im):
"""Applies 1977 filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [243, 106, 188, .3])
cr = css.blending.screen(cb, cs)
cr = css.contrast(cr, 1.1)
cr = css.brightness(cr, 1.1)
cr = css.saturate(cr, 1.3)
return cr
def maven(im):
"""Applies Maven filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [3, 230, 26, .2])
cr = css.blending.hue(cb, cs)
cr = css.sepia(cr, .25)
cr = css.brightness(cr, .95)
cr = css.contrast(cr, .95)
cr = css.saturate(cr, 1.5)
return cr
def reyes(im):
"""Applies Reyes filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [239, 205, 173])
cs = css.blending.soft_light(cb, cs)
cr = Image.blend(cb, cs, .5)
cr = css.sepia(cr, .22)
cr = css.brightness(cr, 1.1)
cr = css.contrast(cr, .85)
cr = css.saturate(cr, .75)
return cr
def walden(im):
"""Applies Walden filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [0, 68, 204])
cs = ImageChops.screen(cb, cs)
cr = Image.blend(cb, cs, .3)
cr = css.brightness(cr, 1.1)
cr = css.hue_rotate(cr, -10)
cr = css.sepia(cr, .3)
cr = css.saturate(cr, 1.6)
return cr
def hudson(im):
"""Applies Hudson filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.radial_gradient(cb.size, [(166, 177, 255), (52, 33, 52)],
[.5, 1])
cs = css.blending.multiply(cb, cs)
cr = Image.blend(cb, cs, .5) # opacity
cr = css.brightness(cr, 1.2)
cr = css.contrast(cr, .9)
cr = css.saturate(cr, 1.1)
return cr
def slumber(im):
"""Applies Slumber filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs1 = util.fill(cb.size, [69, 41, 12, .4])
cm = css.blending.lighten(cb, cs1)
cs2 = util.fill(cb.size, [125, 105, 24, .5])
cr = css.blending.soft_light(cm, cs2)
cr = css.saturate(cr, .66)
cr = css.brightness(cr, 1.05)
return cr
def lofi(im):
"""Applies Lo-Fi filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [34, 34, 34])
cs = css.blending.multiply(cb, cs)
mask = util.radial_gradient_mask(cb.size, length=.7, scale=1.5)
cr = Image.composite(cb, cs, mask)
cr = css.saturate(cr, 1.1)
cr = css.contrast(cr, 1.5)
return cr
def aden(im):
"""Applies Aden filter.
Arguments:
im: An input image.
Returns:
The output image.
"""
cb = util.or_convert(im, 'RGB')
cs = util.fill(cb.size, [66, 10, 14])
cs = ImageChops.darker(cb, cs)
alpha_mask = util.linear_gradient_mask(cb.size, start=.8)
cr = Image.composite(cs, cb, alpha_mask)
cr = css.hue_rotate(cr, -20)
cr = css.contrast(cr, .9)
cr = css.saturate(cr, .85)
cr = css.brightness(cr, 1.2)
return cr
def test_saturate_less_than_0():
with pytest.raises(AssertionError):
im = util.fill((4, 4), [174, 56, 3])
css.saturate(im, -1)
def test_saturate():
im = util.fill((4, 4), [174, 56, 3])
saturated_im = css.saturate(im)
assert saturated_im.size == im.size
assert saturated_im.mode == im.mode
