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authorMattias Andrée <maandree@operamail.com>2014-02-21 02:57:28 +0100
committerMattias Andrée <maandree@operamail.com>2014-02-21 02:57:28 +0100
commitbb1332aa418415eab6b5d731d8a4c1b84b36db77 (patch)
tree4368e1671459b61c122f42fdcd5610089cb69dcb /src
parentdoc 0 param negative (diff)
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rename negative to invert (mirror y) and add negative that reverses (mirror x)
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'src')
-rw-r--r--src/curve.py19
1 files changed, 18 insertions, 1 deletions
diff --git a/src/curve.py b/src/curve.py
index 6446a2a..001108f 100644
--- a/src/curve.py
+++ b/src/curve.py
@@ -336,7 +336,24 @@ def gamma(r, g = None, b = None):
def negative(r = True, g = None, b = None):
'''
- Invert the colour curves (negative image)
+ Revese the colour curves (negative image with gamma preservation)
+
+ @param r:bool Whether to invert the red curve
+ @param g:bool? Whether to invert the green curve, defaults to `r` if `None`
+ @param b:bool? Whether to invert the blue curve, defaults to `r` if `None`
+ '''
+ if g is None: g = r
+ if b is None: b = r
+ for (curve, setting) in curves(r, g, b):
+ if setting:
+ for i in range(i_size // 2):
+ j = i_size - 1 - i
+ curve[i], curve[j] = curve[j], curve[i]
+
+
+def invert(r = True, g = None, b = None):
+ '''
+ Invert the colour curves (negative image with gamma invertion)
@param r:bool Whether to invert the red curve
@param g:bool? Whether to invert the green curve, defaults to `r` if `None`