def enhance(pixbuf,
brightness=1.0,
contrast=1.0,
saturation=1.0,
sharpness=1.0,
autocontrast=False):
'''Return a modified pixbuf from <pixbuf> where the enhancement operations
corresponding to each argument has been performed. A value of 1.0 means
no change. If <autocontrast> is True it overrides the <contrast> value,
but only if the image mode is supported by ImageOps.autocontrast (i.e.
it is L or RGB.)
'''
if is_animation(pixbuf):
return anime_tools.frame_executor(pixbuf,
enhance,
kwargs=dict(brightness=brightness,
contrast=contrast,
saturation=saturation,
sharpness=1.0,
autocontrast=False))
im = pixbuf_to_pil(pixbuf)
if brightness != 1.0:
im = ImageEnhance.Brightness(im).enhance(brightness)
if autocontrast and im.mode in ('L', 'RGB'):
im = ImageOps.autocontrast(im, cutoff=0.1)
elif contrast != 1.0:
im = ImageEnhance.Contrast(im).enhance(contrast)
if saturation != 1.0:
im = ImageEnhance.Color(im).enhance(saturation)
if sharpness != 1.0:
im = ImageEnhance.Sharpness(im).enhance(sharpness)
return pil_to_pixbuf(im)
def trans_pixbuf(src, flip=False, flop=False):
if is_animation(src):
return anime_tools.frame_executor(src,
trans_pixbuf,
kwargs=dict(flip=flip, flop=flop))
if flip: src = src.flip(horizontal=False)
if flop: src = src.flip(horizontal=True)
return src
def fit_pixbuf_to_rectangle(src, rect, rotation):
if is_animation(src):
return anime_tools.frame_executor(src,
fit_pixbuf_to_rectangle,
args=(rect, rotation))
return fit_in_rectangle(src,
rect[0],
rect[1],
rotation=rotation,
keep_ratio=False,
scale_up=True)