def processPage(scan_id, ia_page_index):
print 'processing', scan_id, ia_page_index
img = getIAImage(scan_id, ia_page_index)
result = processImage(img, scan_id, ia_page_index)
del img
return result
def processPage(scan_id, ia_page_index):
print 'processing', scan_id, ia_page_index
img = getIAImage(scan_id, ia_page_index)
result = processImage(img, scan_id, ia_page_index)
del img
return result
def processPage(scan_id, ia_page_index):
img = getIAImage(scan_id, ia_page_index)
filesize = os.path.getsize('tmp/ia/%s/%s.jpeg' % (scan_id, ia_page_index))
mode_to_bpp = {'1': 1, 'L': 8, 'P': 8, 'RGB': 24, 'RGBA': 32, 'CMYK': 32, 'YCbCr': 24, 'I': 32, 'F': 32}
area = img.size[0] * img.size[1]
return {
'file_size': filesize,
'bytes_per_pixel': float(filesize) / area,
'pixel_depth': mode_to_bpp[img.mode],
'compression': float(filesize) * 8 / (area * mode_to_bpp[img.mode])
}
def renderBlocks(scan_id, ia_page_index, pblocks, output_width=500):
img = getIAImage(scan_id, ia_page_index)
if not os.path.exists('tmp/pictureblocks'):
os.mkdir('tmp/pictureblocks')
if not os.path.exists('tmp/pictureblocks/%s' % (scan_id)):
os.mkdir('tmp/pictureblocks/%s' % (scan_id))
output_file = 'tmp/pictureblocks/%s/%s_blocks_%s.png' % (scan_id, scan_id, ia_page_index)
t0 = clock()
size = img.size
scale = float(output_width) / img.size[0]
print 'Image size:', size, 'scale factor:', scale
small = img.resize([output_width, int(img.size[1] * scale)])
draw = ImageDraw.Draw(small)
for block in pblocks:
print block.attrib
draw.rectangle([
(float(block.attrib['l']) * scale, float(block.attrib['t']) * scale),
(float(block.attrib['r']) * scale, float(block.attrib['b']) * scale)
],
outline=(0, 255, 0)
)
del draw
small.save(output_file)
del img
del small
benchmarks['image_processing'].append(clock() - t0)
return output_file
def renderBlocks(scan_id, ia_page_index, pblocks, output_width=500):
img = getIAImage(scan_id, ia_page_index)
if not os.path.exists('tmp/pictureblocks'):
os.mkdir('tmp/pictureblocks')
if not os.path.exists('tmp/pictureblocks/%s' % (scan_id)):
os.mkdir('tmp/pictureblocks/%s' % (scan_id))
output_file = 'tmp/pictureblocks/%s/%s_blocks_%s.png' % (scan_id, scan_id,
ia_page_index)
t0 = clock()
size = img.size
scale = float(output_width) / img.size[0]
print 'Image size:', size, 'scale factor:', scale
small = img.resize([output_width, int(img.size[1] * scale)])
draw = ImageDraw.Draw(small)
for block in pblocks:
print block.attrib
draw.rectangle([(float(block.attrib['l']) * scale,
float(block.attrib['t']) * scale),
(float(block.attrib['r']) * scale,
float(block.attrib['b']) * scale)],
outline=(0, 255, 0))
del draw
small.save(output_file)
del img
del small
benchmarks['image_processing'].append(clock() - t0)
return output_file
