def mirror_bottom(source):
crop_height = int(source.height / 2)
cropped = source.crop((0, crop_height, source.width, 2 * crop_height))
result = Image.new(source.mode, (source.width, 2 * crop_height))
result.paste(flip(cropped), (0, 0))
result.paste(cropped, (0, cropped.height))
return result
def __getitem__(self, idx):
img_line = self.lines[idx]
img_path, label = img_line.split(' ')
img_path = os.path.abspath(os.path.join(self.root_dir, img_path))
label = label.replace('\n', '')
label = int(label)
image = Image.open(img_path)
if self.get_flipped:
image_horizontal_flip = mirror(image)
image_vertical_flip = flip(image)
if self.transform:
image = self.transform(image)
image_horizontal_flip = self.transform(image_horizontal_flip)
image_vertical_flip = self.transform(image_vertical_flip)
return image, image_horizontal_flip, image_vertical_flip, label
else:
if self.transform:
image = self.transform(image)
return image, label
def flip_all(path: str):
""" Vertically flip all images in a directory. Mainly for debugging purposes. """
from tesseractXplore.image_glob import get_images_from_dir
for source in get_images_from_dir(path):
image = Image.open(source)
image = flip(image)
image.save(source)
image.close()
def get_orientated_image(source, default_flip: bool = True) -> Image:
"""
Load and rotate/transpose image according to EXIF orientation, if any. If missing orientation
and the image was fetched from iNat, it will be vertically mirrored. (?)
"""
image = Image.open(source)
exif = image.getexif()
if exif.get(EXIF_ORIENTATION_ID):
image = exif_transpose(image)
# TODO: In the future there may be more cases than just local images and remote images from iNat
elif default_flip and isinstance(source, IOBase):
image = flip(image)
return image
def requestPixmap(self, id, size):
url = QUrl(id)
query = QUrlQuery(url.query())
map_dir = QDir(url.toLocalFile()).path()
dot_size = round(float(query.queryItemValue('dot_size')))
should_flip = query.queryItemValue('flip') in ['True', 'true']
opacity = round(float(query.queryItemValue('opacity')))
try:
img, size = self._generate_heatmap(map_dir, dot_size, opacity)
if should_flip:
img = flip(img)
p = QPixmap.fromImage(img.toqimage())
return p, size
except Exception:
return QPixmap(), QSize(-1, -1)
def process_image_file(input_filepath, output_filepath, threshold):
"""Rotate and crop image.
Args:
input_filepath: Path to the source image.
output_filepath: Path to the output image.
Raises:
OSError: file ops
"""
if input_filepath == output_filepath:
raise ValueError("Cannot overwrite input file.")
input_image = Image.open(input_filepath)
print(input_image.format, input_image.size, input_image.mode)
flipped_image = flip(input_image)
quad = find_mount_boundary_quad(flipped_image, threshold)
d = distortion(*quad)
print("distortion =", d)
extracted_image = extract_quad(flipped_image, *quad)
cropped_image = crop_border(extracted_image, 16)
cropped_image.save(output_filepath)
def __getitem__(self, idx):
""" Returns a transformed image and filename. """
image = Image.open(os.path.join(self.images_dir,
self.image_files[idx]))
# Return the image and it's flipped counterparts.
if self.get_flipped:
image_horizontal_flip = mirror(image)
image_vertical_flip = flip(image)
if self.transform:
image = self.transform(image)
image_horizontal_flip = self.transform(image_horizontal_flip)
image_vertical_flip = self.transform(image_vertical_flip)
return image, image_horizontal_flip, image_vertical_flip, self.image_files[
idx]
# Otherwise, just return the single image.
else:
if self.transform: image = self.transform(image)
return image, self.image_files[idx]
def tile_img(img, width, height):
# Opens an image
bg = Image.open(img)
# The width and height of the background tile
bg_w, bg_h = bg.size
# Creates a new empty image, RGB mode, and size 1000 by 1000
new_im = Image.new('RGB', (width, height))
# The width and height of the new image
w, h = new_im.size
# Iterate through a grid, to place the background tile
for i in range(0, w, bg_w):
for j in range(0, h, bg_h):
# bg = Image.eval(bg, lambda x: x+(i+j)/1000)
new_im.paste(bg, (i, j))
# paste the image at location i, j:
new_im = flip(new_im)
return new_im.tobytes()
filename = 'button-small-%s.png' % label.lower().replace(' ', '-')
# Hintergrund zusammenbauen
gradients = Image.open('generate-button-small.png')
y = 0
height = 23
background = gradients.crop((0, y, 200, height))
right = gradients.crop((203, 0, 208, height))
# Font laden und rausbekommen, wie gross der Button werden muss
ttf = '/Library/Fonts/Arial Narrow Bold.ttf'
font = truetype(ttf, 12, encoding='unic')
text_width, _ = font.getsize(label)
width = text_width + 2 * args.padding
# jetzt den Hintergrund in den Button reinkopieren
button = Image.new('RGBA', (width, height * 2))
button.paste(background, (0, 0))
button.paste(flip(background), (0, height))
button.paste(right, (width-5, 0))
button.paste(flip(right), (width-5, height))
# dann die Beschriftung reinmalen
draw = Draw(button)
draw.text((args.padding, 0+3), label, font=font, fill=args.text_color)
draw.text((args.padding, 23+4), label, font=font, fill=args.text_color)
# und schliesslich nur noch den Button speichern
#button.show()
button.save(filename, 'PNG')
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
__author__ = 'ipetrash'
if __name__ == '__main__':
from PIL import Image
from PIL.ImageOps import flip
im = Image.open('im.png')
im = flip(im)
im.show()
