def test_filter(self):
img = Image.open(open(datafile('test_radar_filter.gif')))
fmt = radar_get_format(3)
img2 = filter_radar(img, fmt)
self.assertEqual(img2.getpixel((8, 1)), (255, 255, 255))
self.assertEqual(img2.getpixel((4, 5)), (255, 255, 255))
self.assertEqual(img2.getpixel((1, 8)), (0, 120, 254))
def test_filter(self):
img = Image.open(open(datafile('test_radar_filter.gif')))
fmt = radar_get_format(3)
img2 = filter_radar(img, fmt)
self.assertEqual(img2.getpixel((8, 1)), (255, 255, 255))
self.assertEqual(img2.getpixel((4, 5)), (255, 255, 255))
self.assertEqual(img2.getpixel((1, 8)), (0, 120, 254))
def align_radar(request):
r = RadarPadavin.objects.all()[0]
fmt = radar_get_format(r.format_id)
geotiff = annotate_geo_radar(r.pic, fmt, scale=4)
img = Image.open(StringIO(geotiff)).convert('RGBA')
a = numpy.array(numpy.asarray(img))
d = numpy.zeros(a.shape[:2], dtype=numpy.bool)
for c in fmt.COLOR_IGNORE:
d |= (a[:,:,0] == c[0]) & (a[:,:,1] == c[1]) & (a[:,:,2] == c[2])
a[d,3] = 200
a[~d,3] = 0
return _png_image_fromarray(a)
def align_radar(request):
r = RadarPadavin.objects.all()[0]
fmt = radar_get_format(r.format_id)
geotiff = annotate_geo_radar(r.pic, fmt, scale=4)
img = Image.open(StringIO(geotiff)).convert('RGBA')
a = numpy.array(numpy.asarray(img))
d = numpy.zeros(a.shape[:2], dtype=numpy.bool)
for c in fmt.COLOR_IGNORE:
d |= (a[:, :, 0] == c[0]) & (a[:, :, 1] == c[1]) & (a[:, :, 2] == c[2])
a[d, 3] = 200
a[~d, 3] = 0
return _png_image_fromarray(a)
def _png_image(model):
model.processed.open()
img = Image.open(model.processed).convert('RGBA')
fmt = radar_get_format(model.format_id)
a = numpy.array(numpy.asarray(img))
# select white color
d = (a[:,:,0] == fmt.COLOR_BG[0]) & \
(a[:,:,1] == fmt.COLOR_BG[1]) & \
(a[:,:,2] == fmt.COLOR_BG[2])
# make white pixels completely transparent
a[d,3] = 0
# make non-white pixels partially transparent
a[~d,3] = 128
return _png_image_fromarray(a)
def _png_image(model):
model.processed.open()
img = Image.open(model.processed).convert('RGBA')
fmt = radar_get_format(model.format_id)
a = numpy.array(numpy.asarray(img))
# select white color
d = (a[:,:,0] == fmt.COLOR_BG[0]) & \
(a[:,:,1] == fmt.COLOR_BG[1]) & \
(a[:,:,2] == fmt.COLOR_BG[2])
# make white pixels completely transparent
a[d, 3] = 0
# make non-white pixels partially transparent
a[~d, 3] = 128
return _png_image_fromarray(a)
def load_from_model(self, instance):
if instance.format_id > 0:
self.fmt = radar_get_format(instance.format_id)
self.load_from_string(instance.processed.read())
self.last_modified = instance.last_modified
def __init__(self):
self.bands = {}
self.last_modified = None
self.fmt = radar_get_format(0)
self.clean()
def load_from_model(self, instance):
if instance.format_id > 0:
self.fmt = radar_get_format(instance.format_id)
self.load_from_string(instance.processed.read())
self.last_modified = instance.last_modified
def __init__(self):
self.bands = {}
self.last_modified = None
self.fmt = radar_get_format(0)
self.clean()