def convert(source_fh, source_type, dest_type, dest_size):
"""somewhat like convert(1)"""
i = Image(source_fh, source_type)
if not i.select(dest_size):
print "bad size"
i.alpha(True)
i.scale(dest_size)
i.alpha(True)
result = i.dump(dest_type)
return result
import copy
import random
from pythonmagickwand.image import Image
from pythonmagickwand.wand import LANCZOS_FILTER, TRANSPARENT_COLORSPACE
from pythonmagickwand.color import Color, BLACK, YELLOW, TRANSPARENT
YELLOW = Color('#ffcc33')
m = Image('monkey.png')
m.opaque_paint(BLACK, YELLOW, 10)
m.scale((500,500))
m.compression_quality = 95
im = Image()
im.colorspace = TRANSPARENT_COLORSPACE
im.size = (4000, 800)
im.format = 'PNG'
im.background_color = TRANSPARENT
_w, _h = im.size
num = range(3000)
for i in num:
ratio = (i+1.)/len(num)
random.seed()
_min = int(100*ratio+100)
w = random.randint(_min, max(int(400*ratio), _min))
c = copy.copy(m)
c.scale((w, w))
c.rotate(random.randint(0, 360), TRANSPARENT)
c.modulate(brightness=i*25/len(num) + 75)
