Skip to content

Low distortion for low magnitudes #25

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
A-Telfer wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Low distortion for low magnitudes #25

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
32 changes: 20 additions & 12 deletions RandAugment/augmentations.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -96,23 +96,31 @@ def Posterize(img, v): # [4, 8]


def Contrast(img, v): # [0.1,1.9]
assert 0.1 <= v <= 1.9
return PIL.ImageEnhance.Contrast(img).enhance(v)
assert 0 <= v <= 0.9
if random.random() > 0.5:
v = -v
return PIL.ImageEnhance.Contrast(img).enhance(1+v)


def Color(img, v): # [0.1,1.9]
assert 0.1 <= v <= 1.9
return PIL.ImageEnhance.Color(img).enhance(v)
assert 0 <= v <= 0.9
if random.random() > 0.5:
v = -v
return PIL.ImageEnhance.Color(img).enhance(1+v)


def Brightness(img, v): # [0.1,1.9]
assert 0.1 <= v <= 1.9
return PIL.ImageEnhance.Brightness(img).enhance(v)
assert 0 <= v <= 0.9
if random.random() > 0.5:
v = -v
return PIL.ImageEnhance.Brightness(img).enhance(1+v)


def Sharpness(img, v): # [0.1,1.9]
assert 0.1 <= v <= 1.9
return PIL.ImageEnhance.Sharpness(img).enhance(v)
assert 0 <= v <= 0.9
if random.random() > 0.5:
v = -v
return PIL.ImageEnhance.Sharpness(img).enhance(1+v)


def Cutout(img, v): # [0, 60] => percentage: [0, 0.2]
Expand Down Expand Up @@ -189,10 +197,10 @@ def augment_list(): # 16 oeprations and their ranges
(Posterize, 0, 4),
(Solarize, 0, 256),
(SolarizeAdd, 0, 110),
(Color, 0.1, 1.9),
(Contrast, 0.1, 1.9),
(Brightness, 0.1, 1.9),
(Sharpness, 0.1, 1.9),
(Color, 0, 0.9),
(Contrast, 0, 0.9),
(Brightness, 0, 0.9),
(Sharpness, 0, 0.9),
(ShearX, 0., 0.3),
(ShearY, 0., 0.3),
(CutoutAbs, 0, 40),
Expand Down