def main():
filepath = 'input/treasure_island.JPG'
o = Image.open(filepath).convert('RGB')
print(o.mode, o.size, o.format, filepath)
w = 4000
h = int(o.height * w / float(o.width))
o = o.resize((w, h))
o = adjust(o, color=1.0, contrast=1.0, brightness=1.0)
wp = 800
hp = int(o.height * wp / float(o.width))
preview = ImagePreview((wp, hp), o)
t = threading.Thread(target=render, args=(filepath, o, preview))
t.daemon = True
t.start()
# Open the preview window and block the main thread
preview.start()
def test_check_if_header_from_different_image_creates_proper_thumbnail(self):
from PIL import Image
from io import BytesIO
file_bytes = open("%s/assets/emerald.jpg" % path, "rb")
file_bytes_second = open("%s/assets/matheson.jpg" % path, "rb")
ip = ImagePreview(file_path_or_bytes=file_bytes)
ip_second = ImagePreview(file_path_or_bytes=file_bytes_second)
composited_image_bytes = ip.thumbnail_header_bytes() + ip_second.thumbnail_body_bytes()
composited_image_bytes = ip.thumbnail_bytes()
ip_composited = Image.open(BytesIO(composited_image_bytes))
width, height = ip_composited.size
self.assertEqual(width, 42)
self.assertEqual(height, 42)
self.assertEqual(ip_composited.format, "JPEG")
def test_image_body_b64(self):
file_bytes = open("%s/assets/emerald.jpg" % path, "rb")
ip = ImagePreview(file_path_or_bytes=file_bytes)
self.assertEqual(len(ip.thumbnail_body_b64()), 304)
def test_image_header_length(self):
file_bytes = open("%s/assets/emerald.jpg" % path, "rb")
ip = ImagePreview(file_path_or_bytes=file_bytes)
self.assertEqual(len(ip.thumbnail_header_bytes()), 620)
def test_image_bytes_not_image(self):
with self.assertRaises(IOError):
file_bytes = open("%s/assets/bytes.bin" % path, "rb")
ip = ImagePreview(file_path_or_bytes=file_bytes)
def test_image_file_not_found(self):
with self.assertRaises(IOError):
ip = ImagePreview(file_path_or_bytes="Nonexistent file")
def test_image_bytes_attribute_error(self):
with self.assertRaises(AttributeError):
ip = ImagePreview(file_path_or_bytes=0)
def test_image_bytes_open(self):
file_bytes = open("%s/assets/emerald.jpg" % path, "rb")
ip = ImagePreview(file_path_or_bytes=file_bytes)