def generate_thumbnails(img_path):
# Compute filenames and paths
img_path = os.path.normpath(img_path)
base_path, img_fname = os.path.split(img_path)
filename, ext = os.path.splitext(img_fname)
png_large_name = filename + '.png'
png_thumb_name = filename + '.tb.png'
png_large_path = os.path.normpath(os.path.join(base_path, png_large_name))
png_thumb_path = os.path.normpath(os.path.join(base_path, png_thumb_name))
# Convert original TIFF file to PNG format and also create a thumbnailed version.
# Use Pillow, ImageMagick or other tooling.
logger.info('Processing image "{}"'.format(img_path))
with open(img_path, 'rb') as tiff:
# Write original image in PNG format
# Only process image if not already exists
if not os.path.exists(png_large_path):
png_large = to_png(tiff)
with open(png_large_path, 'wb') as f:
f.write(png_large.read())
tiff.seek(0)
# Write thumbnail image in PNG format
# Only process image if not already exists
if not os.path.exists(png_thumb_path):
width, height = THUMBNAIL_SIZE
png_thumb = to_png(tiff, width=width, height=height)
with open(png_thumb_path, 'wb') as f:
f.write(png_thumb.read())
return png_thumb_name, png_large_name, img_fname
def to_png(self, img_name):
util.to_png(img_name, 50, 50, self.states)
def to_png(self, png_name):
util.to_png(png_name, 50, 50, self.states)