def optimize(img, qual=75):
"""
Optimize image.
@rtype: C{MyImage}
"""
from PIL import Image, ImageFile
ImageFile.LOAD_TRUNCATED_IMAGES = True
# Save image in temp-folder
context = img.aq_parent
tempfolder = tempfile.mktemp()
filepath = _fileutil.getOSPath('%s/%s'%(tempfolder, img.filename))
_fileutil.exportObj(img, filepath)
# Resize image
im = Image.open(filepath)
im = im.convert('RGB')
im.convert('RGB').save(filepath, "JPEG", quality=qual, optimize=True)
# Read optimized image from file-system
f = open(filepath, 'rb')
data = f.read()
result = {'data':data,'filename':img.filename}
f.close()
# Remove temp-folder and images
_fileutil.remove(tempfolder, deep=1)
# Returns resulting image
image = standard.ImageFromData(context, result['data'], result['filename'])
return image
def rotate(img, direction, qual=75):
"""
Rotate image.
"""
try:
from PIL import Image
except:
import Image
# Save image in temp-folder
context = img.aq_parent
tempfolder = tempfile.mktemp()
filepath = _fileutil.getOSPath('%s/%s' % (tempfolder, img.filename))
_fileutil.exportObj(img, filepath)
# Rotate image
im = Image.open(filepath)
im = im.rotate(direction)
im.convert('RGB').save(filepath, "JPEG", quality=qual, optimize=True)
# Read rotated image from file-system
f = open(filepath, 'rb')
data = f.read()
result_filename = _fileutil.extractFilename(filepath)
result = {'data': data, 'filename': img.filename}
f.close()
# Remove temp-folder and images
_fileutil.remove(tempfolder, deep=1)
# Returns resulting image
image = standard.ImageFromData(context, result['data'], result['filename'])
return image
def crop(img, box, qual=75):
"""
Crop image.
@rtype: C{MyImage}
"""
try:
from PIL import Image
except:
import Image
# Save image in temp-folder
context = img.aq_parent
tempfolder = tempfile.mktemp()
filepath = _fileutil.getOSPath('%s/%s' % (tempfolder, img.filename))
_fileutil.exportObj(img, filepath)
# Crop image
im = Image.open(filepath)
im = im.crop(box)
im.convert('RGB').save(filepath, "JPEG", quality=qual)
# Read resized image from file-system
f = open(filepath, 'rb')
result_data = f.read()
result_filename = _fileutil.extractFilename(filepath)
result = {'data': result_data, 'filename': result_filename}
f.close()
# Remove temp-folder and images
_fileutil.remove(tempfolder, deep=1)
# Returns resulting image
image = standard.ImageFromData(context, result['data'], result['filename'])
return image
def read_image(self, filename):
filepath = "../plugins/www/img/%s" % filename
modulepath = os.sep.join(
inspect.getfile(self.__class__).split(os.sep)[:-1])
file = open(os.path.join(modulepath, filepath), "rb")
filedata = file.read()
file.close()
return standard.ImageFromData(self.context, filedata, filename)
def thumbnail(img, maxdim, qual=75):
"""
Tumbnail image.
@rtype: C{MyImage}
"""
# Resize image
context = img.aq_parent
size = (maxdim, maxdim)
thumb = resize( img, size, mode='thumbnail', qual=qual)
# Returns resulting image
image = standard.ImageFromData(context, thumb.getData(), thumb.getFilename())
return image
def resize(img, size, mode='resize', sffx='_thumbnail', qual=75):
"""
Resize image.
@rtype: C{MyImage}
"""
from PIL import Image, ImageFile
ImageFile.LOAD_TRUNCATED_IMAGES = True
# Save image in temp-folder
context = img.aq_parent
tempfolder = tempfile.mktemp()
filepath = _fileutil.getOSPath('%s/%s'%(tempfolder, img.filename))
_fileutil.exportObj(img, filepath)
# Resize SVG
svg_dim = svgutil.get_dimensions(img)
if svg_dim is not None:
img = svgutil.set_dimensions(img,size)
f = open(filepath, 'wb')
f.write(img.getData())
f.close()
# Resize image
else:
im = Image.open(filepath)
im = im.convert('RGB')
maxdim = max(list(size))
if mode == 'thumbnail':
try:
im.thumbnail((maxdim, maxdim), Image.ANTIALIAS)
except:
im.thumbnail((maxdim, maxdim))
elif mode == 'resize':
try:
im = im.resize(size, Image.ANTIALIAS)
except:
im = im.resize(size)
elif mode == 'square':
try:
width, height = im.size
dst_width, dst_height = maxdim, maxdim
if width > height:
delta = width - height
left = int(delta/2)
upper = 0
right = height + left
lower = height
else:
delta = height - width
left = 0
upper = int(delta/2)
right = width
lower = width + upper
im = im.crop(( left, upper, right, lower))
im = im.resize((dst_width, dst_height), Image.ANTIALIAS)
except:
im.resize(size)
im.convert('RGB').save(filepath, "JPEG", quality=qual, optimize=True)
# Read resized image from file-system
f = open(filepath, 'rb')
result_data = f.read()
f.close()
# Remove temp-folder and images
_fileutil.remove(tempfolder, deep=1)
thumb_sffx = str(sffx)
getfilename = _fileutil.extractFilename(filepath).split('.')
filename = getfilename[0:-1]
filename = ".".join(filename)
filename = filename.replace('.', '_')
extension = _fileutil.extractFileExt(filepath)
result_filename = filename + thumb_sffx + '.' + extension
result = {'data':result_data,'filename':result_filename}
# Returns resulting image
image = standard.ImageFromData(context, result['data'], result['filename'])
return image