def make_window_prereqs(cpd, filename, num_samples=7, concurrent=False):
try:
generator = blur.open(filename, blur.Types.PYGAME)
except IOError:
print("Could not open {0} as an image. Exiting.".format(filename))
exit(-1)
generator.calcPixelsPerDegree((1024, 768), (36, 27), 61)
cpd_values = [value / 100.0 for value in range(4000, 50, -1)]
num_valid = sum([1 for value in cpd_values if value > cpd])
samples = [cpd]
for x in range(0, num_samples+1):
y = num_valid * math.sqrt((1 - ((x*x) / float(num_samples*num_samples))))
if int(y) < len(cpd_values):
samples.append(cpd_values[int(y)])
maker = generator.lowPassFilterBatch(samples, concurrent=concurrent, supress=True)
return [blur.exportToPygame(s) for s in maker]
def make_window_prereqs(cpd, filename, num_samples=7, concurrent=False):
try:
generator = blur.open(filename, blur.Types.PYGAME)
except IOError:
print("Could not open {0} as an image. Exiting.".format(filename))
exit(-1)
generator.calcPixelsPerDegree((1024, 768), (36, 27), 61)
cpd_values = [value / 100.0 for value in range(4000, 50, -1)]
num_valid = sum([1 for value in cpd_values if value > cpd])
samples = [cpd]
for x in range(0, num_samples + 1):
y = num_valid * math.sqrt(
(1 - ((x * x) / float(num_samples * num_samples))))
if int(y) < len(cpd_values):
samples.append(cpd_values[int(y)])
maker = generator.lowPassFilterBatch(samples,
concurrent=concurrent,
supress=True)
return [blur.exportToPygame(s) for s in maker]
def main():
parser = argparse.ArgumentParser(description="Takes in a file and applies a low-pass blur filter. Supported formats are tif, jpg, png, bmp, and gif.")
parser.add_argument("cycles_per_degree", type=float, help="The lower bound cycles per degree of the filter.")
parser.add_argument("source_file", help="Filename of the image to apply the filter to.")
parser.add_argument("destination_file", nargs="?", default=None, help="Filename to write the filtered image to. If not given, the image is display on screen.")
parser.add_argument("-concurrent, -c", dest="concurrent", action="store_true", help="If set, the blur will be generated concurrently. Only supported under Python 3.x and up.")
args = parser.parse_args()
image_prompt = "Filename or directory to blur: "
cpd_prompt = "CPD Bound: "
save_prompt = "Filename or directory to save to: "
saving_error_msg = "Could not save to the indicated path, please make sure the output filename is a valid image format. Exiting."
cpd = args.cycles_per_degree
filename = args.source_file
savedir = args.destination_file
saved_to_dir = False
if savedir is not None:
if os.path.isfile(savedir):
saved_to_dir = False
elif os.path.isdir(savedir):
saved_to_dir = True
else:
if "." not in savedir:
saved_to_dir = True
try:
os.makedirs(savedir)
except:
print("Could not create the destination directory. Exiting.")
exit(-1)
try:
generator = blur.open(filename, blur.Types.PYGAME)
except IOError:
print("Could not open {0} as an image. Exiting.".format(filename))
exit(-1)
pygame.init()
print("Applying filter of {0:f} cycles per degree to {1}".format(cpd, filename))
generator.calcPixelsPerDegree((1024, 768), (36, 27), 61)
try:
generator = generator.lowPassFilter(cpd, concurrent=args.concurrent)
except ImportError:
print("Unable to import concurrency libraries. Ensure you are using Python 3.x or higher. Continuing normally.")
generator = generator.lowPassFilter(cpd, concurrent=False)
output = blur.exportToPygame(generator)
if savedir is not None:
if saved_to_dir:
savepath = os.path.join(savedir, filename)
print("Saving {0} to {1}".format(filename, savepath))
try:
pygame.image.save(output, savepath)
except:
print(saving_error_msg)
exit(-1)
else:
print("Saving {0}".format(savedir))
try:
pygame.image.save(output, savedir)
except:
print(saving_error_msg)
exit(-1)
else:
screen = pygame.display.set_mode(output.get_size())
screen.blit(output, (0,0))
pygame.display.flip()
running = True
while running:
time.sleep(0.01)
for e in pygame.event.get():
if e.type == pygame.KEYDOWN and (e.key == pygame.K_q or e.key == pygame.K_ESCAPE):
running = False
elif e.type == pygame.QUIT:
running = False
def main():
parser = argparse.ArgumentParser(
description=
"Takes in a file and applies a low-pass blur filter. Supported formats are tif, jpg, png, bmp, and gif."
)
parser.add_argument(
"cycles_per_degree",
type=float,
help="The lower bound cycles per degree of the filter.")
parser.add_argument("source_file",
help="Filename of the image to apply the filter to.")
parser.add_argument(
"destination_file",
nargs="?",
default=None,
help=
"Filename to write the filtered image to. If not given, the image is display on screen."
)
parser.add_argument(
"-concurrent, -c",
dest="concurrent",
action="store_true",
help=
"If set, the blur will be generated concurrently. Only supported under Python 3.x and up."
)
args = parser.parse_args()
image_prompt = "Filename or directory to blur: "
cpd_prompt = "CPD Bound: "
save_prompt = "Filename or directory to save to: "
saving_error_msg = "Could not save to the indicated path, please make sure the output filename is a valid image format. Exiting."
cpd = args.cycles_per_degree
filename = args.source_file
savedir = args.destination_file
saved_to_dir = False
if savedir is not None:
if os.path.isfile(savedir):
saved_to_dir = False
elif os.path.isdir(savedir):
saved_to_dir = True
else:
if "." not in savedir:
saved_to_dir = True
try:
os.makedirs(savedir)
except:
print(
"Could not create the destination directory. Exiting.")
exit(-1)
try:
generator = blur.open(filename, blur.Types.PYGAME)
except IOError:
print("Could not open {0} as an image. Exiting.".format(filename))
exit(-1)
pygame.init()
print("Applying filter of {0:f} cycles per degree to {1}".format(
cpd, filename))
generator.calcPixelsPerDegree((1024, 768), (36, 27), 61)
try:
generator = generator.lowPassFilter(cpd, concurrent=args.concurrent)
except ImportError:
print(
"Unable to import concurrency libraries. Ensure you are using Python 3.x or higher. Continuing normally."
)
generator = generator.lowPassFilter(cpd, concurrent=False)
output = blur.exportToPygame(generator)
if savedir is not None:
if saved_to_dir:
savepath = os.path.join(savedir, filename)
print("Saving {0} to {1}".format(filename, savepath))
try:
pygame.image.save(output, savepath)
except:
print(saving_error_msg)
exit(-1)
else:
print("Saving {0}".format(savedir))
try:
pygame.image.save(output, savedir)
except:
print(saving_error_msg)
exit(-1)
else:
screen = pygame.display.set_mode(output.get_size())
screen.blit(output, (0, 0))
pygame.display.flip()
running = True
while running:
time.sleep(0.01)
for e in pygame.event.get():
if e.type == pygame.KEYDOWN and (e.key == pygame.K_q
or e.key == pygame.K_ESCAPE):
running = False
elif e.type == pygame.QUIT:
running = False
try:
image = raw_input("Path of image: ")
except:
image = input("Path of image: ")
print("")
s = time.time()
gen = blur.open(image, blur.Types.PYGAME)
# print "loading took {0}".format((time.time() - s) * 1000.0)
s2 = time.time()
gen.calcPixelsPerDegree((1024, 768), (36, 27), 61)
# print "calc took {0}".format((time.time() - s2) * 1000.0)
s2 = time.time()
gen = gen.applyLowPassFilter(cpd, concurrent=True)
print("filter took {0}".format((time.time() - s2) * 1000.0))
s2 = time.time()
out = blur.exportToPygame(gen)
# print "export took {0}".format((time.time() - s2) * 1000.0)
s2 = time.time()
disp.blit(out, (0,0))
pygame.display.flip()
# print "blit took {0}".format((time.time() - s2) * 1000.0)
# print "all took {0}".format((time.time() - s) * 1000.0)
running = True
while(running):
pygame.display.flip()
for evt in pygame.event.get():
if evt.type == pygame.QUIT:
running = False
elif evt.type == pygame.KEYDOWN:
if evt.key == pygame.K_ESCAPE:
running = False
try:
image = raw_input("Path of image: ")
except:
image = input("Path of image: ")
print("")
s = time.time()
gen = blur.open(image, blur.Types.PYGAME)
# print "loading took {0}".format((time.time() - s) * 1000.0)
s2 = time.time()
gen.calcPixelsPerDegree((1024, 768), (36, 27), 61)
# print "calc took {0}".format((time.time() - s2) * 1000.0)
s2 = time.time()
gen = gen.applyLowPassFilter(cpd, concurrent=True)
print("filter took {0}".format((time.time() - s2) * 1000.0))
s2 = time.time()
out = blur.exportToPygame(gen)
# print "export took {0}".format((time.time() - s2) * 1000.0)
s2 = time.time()
disp.blit(out, (0, 0))
pygame.display.flip()
# print "blit took {0}".format((time.time() - s2) * 1000.0)
# print "all took {0}".format((time.time() - s) * 1000.0)
running = True
while (running):
pygame.display.flip()
for evt in pygame.event.get():
if evt.type == pygame.QUIT:
running = False
elif evt.type == pygame.KEYDOWN:
if evt.key == pygame.K_ESCAPE:
running = False