本文整理汇总了Python中calibre.utils.magick.Image.create_canvas方法的典型用法代码示例。如果您正苦于以下问题：Python Image.create_canvas方法的具体用法？Python Image.create_canvas怎么用？Python Image.create_canvas使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类calibre.utils.magick.Image的用法示例。
在下文中一共展示了Image.create_canvas方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: convert_image
# 需要导入模块: from calibre.utils.magick import Image [as 别名]
# 或者: from calibre.utils.magick.Image import create_canvas [as 别名]
def convert_image(url, data, sizes, grayscale, removetrans, imgtype="jpg", background="#ffffff"):
export = False
img = Image()
img.load(data)
owidth, oheight = img.size
nwidth, nheight = sizes
scaled, nwidth, nheight = fit_image(owidth, oheight, nwidth, nheight)
if normalize_format_name(img.format) == "gif" and GifInfo(StringIO(data), CHECK_IS_ANIMATED).frameCount > 1:
raise exceptions.RejectImage("Animated gifs come out purely--not going to use it.")
if scaled:
img.size = (nwidth, nheight)
export = True
if normalize_format_name(img.format) != imgtype:
export = True
if removetrans and img.has_transparent_pixels():
canvas = Image()
canvas.create_canvas(int(img.size[0]), int(img.size[1]), unicode(background))
canvas.compose(img)
img = canvas
export = True
if grayscale and img.type != "GrayscaleType":
img.type = "GrayscaleType"
export = True
if export:
return (img.export(convtype[imgtype]), imgtype, imagetypes[imgtype])
else:
logger.debug("image used unchanged")
return (data, imgtype, imagetypes[imgtype])示例2: convert_image
# 需要导入模块: from calibre.utils.magick import Image [as 别名]
# 或者: from calibre.utils.magick.Image import create_canvas [as 别名]
def convert_image(url,data,sizes,grayscale,
removetrans,imgtype="jpg",background='#ffffff'):
export = False
img = Image()
img.load(data)
owidth, oheight = img.size
nwidth, nheight = sizes
scaled, nwidth, nheight = fit_image(owidth, oheight, nwidth, nheight)
if scaled:
img.size = (nwidth, nheight)
export = True
if normalize_format_name(img.format) != imgtype:
export = True
if removetrans and img.has_transparent_pixels():
canvas = Image()
canvas.create_canvas(int(img.size[0]), int(img.size[1]), str(background))
canvas.compose(img)
img = canvas
export = True
if grayscale and img.type != "GrayscaleType":
img.type = "GrayscaleType"
export = True
if export:
return (img.export(convtype[imgtype]),imgtype,imagetypes[imgtype])
else:
logger.debug("image used unchanged")
return (data,imgtype,imagetypes[imgtype])