def main():
aug = iaa.BlendAlphaMask(
iaa.SomeColorsMaskGen(),
iaa.OneOf([iaa.TotalDropout(1.0),
iaa.AveragePooling(8)]))
aug2 = iaa.BlendAlphaSomeColors(
iaa.OneOf([iaa.TotalDropout(1.0),
iaa.AveragePooling(8)]))
urls = [
("https://upload.wikimedia.org/wikipedia/commons/thumb/4/43/"
"Sarcophilus_harrisii_taranna.jpg/"
"320px-Sarcophilus_harrisii_taranna.jpg"),
("https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/"
"Vincent_van_Gogh_-_Wheatfield_with_crows_-_Google_Art_Project.jpg/"
"320px-Vincent_van_Gogh_-_Wheatfield_with_crows_-_Google_Art_Project"
".jpg"),
("https://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/"
"Galerella_sanguinea_Zoo_Praha_2011-2.jpg/207px-Galerella_sanguinea_"
"Zoo_Praha_2011-2.jpg"),
("https://upload.wikimedia.org/wikipedia/commons/thumb/9/96/"
"Ambrosius_Bosschaert_the_Elder_%28Dutch_-_Flower_Still_Life_-_"
"Google_Art_Project.jpg/307px-Ambrosius_Bosschaert_the_Elder_%28"
"Dutch_-_Flower_Still_Life_-_Google_Art_Project.jpg")
]
for url in urls:
img = imageio.imread(url)
ia.imshow(ia.draw_grid(aug(images=[img] * 25), cols=5, rows=5))
ia.imshow(ia.draw_grid(aug2(images=[img] * 25), cols=5, rows=5))
def chapter_augmenters_blendalphamask():
fn_start = "blend/blendalphamask"
aug = iaa.BlendAlphaMask(
iaa.InvertMaskGen(0.5, iaa.VerticalLinearGradientMaskGen()),
iaa.Sequential(
[iaa.Clouds(),
iaa.WithChannels([1, 2], iaa.Multiply(0.5))]))
run_and_save_augseq(fn_start + ".jpg",
aug,
[ia.quokka(size=(128, 128)) for _ in range(4 * 2)],
cols=4,
rows=2)
def main():
aug = iaa.BlendAlphaMask(
iaa.SegMapClassIdsMaskGen(1),
iaa.OneOf([iaa.TotalDropout(1.0),
iaa.AveragePooling(8)]))
aug2 = iaa.BlendAlphaSegMapClassIds(
1, iaa.OneOf([iaa.TotalDropout(1.0),
iaa.AveragePooling(8)]))
image = ia.quokka(0.25)
segmap = ia.quokka_segmentation_map(0.25)
images_aug, segmaps_aug = aug(images=[image] * 25,
segmentation_maps=[segmap] * 25)
ia.imshow(ia.draw_grid(images_aug, cols=5, rows=5))
images_aug, segmaps_aug = aug2(images=[image] * 25,
segmentation_maps=[segmap] * 25)
ia.imshow(ia.draw_grid(images_aug, cols=5, rows=5))
aug20 = iaa.GaussianBlur(sigma=(0.0, 3.0)) # blur
aug21 = iaa.AverageBlur(k=((1, 5), (1, 3)))
aug22 = iaa.MotionBlur(k=3)
# aug23 = iaa.BlendAlpha(
# (0.0, 0.5),
# iaa.Affine(rotate=(0, 0)),
# per_channel=0.5)
# aug24 = iaa.BlendAlpha(
# (0.0, 0.5),
# foreground=iaa.Add(60),
# background=iaa.Multiply(0.2))
aug25 = iaa.BlendAlphaMask(
iaa.InvertMaskGen(0.5, iaa.VerticalLinearGradientMaskGen()),
iaa.Clouds()
)
aug26 = iaa.BlendAlphaElementwise(
(0.0, 0.5),
iaa.Affine(rotate=(-0, 0)),
per_channel=0.5)
aug27 = iaa.BlendAlphaElementwise(
(0.0, 0.2),
foreground=iaa.Add(20),
background=iaa.Multiply(0.4))
aug28 = iaa.BlendAlphaElementwise([0.25, 0.75], iaa.MedianBlur(13))
aug29 = iaa.BlendAlphaSimplexNoise(iaa.EdgeDetect(0.6))
aug30 = iaa.BlendAlphaSimplexNoise(
count += 1
print("{} annotations and images have been transformed!!".format(
count))
sometimes = lambda aug: iaa.Sometimes(0.9, aug)
seq = iaa.SomeOf(
(1, 2),
[
sometimes(
iaa.BlendAlphaFrequencyNoise(foreground=iaa.EdgeDetect(0.75),
upscale_method="nearest")),
sometimes(
iaa.BlendAlphaMask(
iaa.InvertMaskGen(0.5, iaa.VerticalLinearGradientMaskGen()),
iaa.Sequential([iaa.Clouds(),
iaa.WithChannels([1, 2])]))),
sometimes(
iaa.BlendAlphaCheckerboard(
nb_rows=2, nb_cols=(1, 4), foreground=iaa.AddToHue(
(-80, 80)))),
#important augmenter
sometimes(
iaa.BlendAlphaVerticalLinearGradient(iaa.AveragePooling(10),
start_at=(0.0, 1.0),
end_at=(0.0, 1.0))),
sometimes(
iaa.BlendAlphaSimplexNoise(iaa.EdgeDetect(1.0),
upscale_method="linear"))
])