def convert_image(url, data, sizes, grayscale, removetrans, imgtype="jpg", background="#ffffff"):
export = False
img = Image.open(StringIO(data))
owidth, oheight = img.size
nwidth, nheight = sizes
scaled, nwidth, nheight = fit_image(owidth, oheight, nwidth, nheight)
if scaled:
img = img.resize((nwidth, nheight), Image.ANTIALIAS)
export = True
if normalize_format_name(img.format) != imgtype:
if img.mode == "P":
# convert pallete gifs to RGB so jpg save doesn't fail.
img = img.convert("RGB")
export = True
if removetrans and img.mode == "RGBA":
background = Image.new("RGBA", img.size, background)
# Paste the image on top of the background
background.paste(img, img)
img = background.convert("RGB")
export = True
if grayscale and img.mode != "L":
img = img.convert("L")
export = True
if export:
outsio = StringIO()
img.save(outsio, convtype[imgtype])
return (outsio.getvalue(), imgtype, imagetypes[imgtype])
else:
logger.debug("image used unchanged")
return (data, imgtype, imagetypes[imgtype])
def convert_image(url,
data,
sizes,
grayscale,
removetrans,
imgtype="jpg",
background='#ffffff'):
export = False
img = Image.open(StringIO(data))
owidth, oheight = img.size
nwidth, nheight = sizes
scaled, nwidth, nheight = fit_image(owidth, oheight, nwidth,
nheight)
if scaled:
img = img.resize((nwidth, nheight), Image.ANTIALIAS)
export = True
if normalize_format_name(img.format) != imgtype:
if img.mode == "P":
# convert pallete gifs to RGB so jpg save doesn't fail.
img = img.convert("RGB")
export = True
if removetrans and img.mode == "RGBA":
background = Image.new('RGBA', img.size, background)
# Paste the image on top of the background
background.paste(img, img)
img = background.convert('RGB')
export = True
if grayscale and img.mode != "L":
img = img.convert("L")
export = True
if export:
outsio = StringIO()
img.save(outsio, convtype[imgtype])
return (outsio.getvalue(), imgtype, imagetypes[imgtype])
else:
logger.debug("image used unchanged")
return (data, imgtype, imagetypes[imgtype])
