Python PIL.ImageFilter 模块，CONTOUR 实例源码

def apply_effects(image, effects):
    """method to apply effects to original image from list of effects
    """
    for effect in effects:
        gray = ImageOps.grayscale(image)
        # dictionary with all the availble effects
        all_effects = {
            'BLUR': image.filter(ImageFilter.BLUR),
            'CONTOUR': image.filter(ImageFilter.CONTOUR),
            'EMBOSS': image.filter(ImageFilter.EMBOSS),
            'SMOOTH': image.filter(ImageFilter.SMOOTH),
            'HULK': ImageOps.colorize(gray, (0, 0, 0, 0), '#00ff00'),
            'FLIP': ImageOps.flip(image),
            'MIRROR': ImageOps.mirror(image),
            'INVERT': ImageOps.invert(image),
            'SOLARIZE': ImageOps.solarize(image),
            'GREYSCALE': ImageOps.grayscale(image),

        }
        phedited = all_effects[effect]
        image = phedited
    return phedited

def rip(self, ctx, member_or_text: str):
        """RIP\nCreates a tombstone for either a member or some text. Mention a member to get the avatar + name"""
        if ctx.message.mentions:
            user_name = ctx.message.mentions[0].name.replace(" ", "%20")
            rip_member = ctx.message.mentions[0]
            ava_url = rip_member.avatar_url
            url = "https://ripme.xyz/{}"
            msg = url.format(user_name)

            tomb = Image.open(os.path.join(asset_pos, "tombstone.png"))
            base_img = Image.new("RGBA", (tomb.width, tomb.height), color="White")
            with aiohttp.ClientSession() as session:
                async with session.get(ava_url) as resp:
                    ava = await resp.content.read()

            ava_img = Image.open(io.BytesIO(ava))
            ava_img_greyscale = ImageOps.autocontrast(ava_img.convert("L").filter(ImageFilter.CONTOUR)).filter(
                ImageFilter.SMOOTH).resize((200, 200))
            base_img.paste(ava_img_greyscale, (140, 380, 340, 580))
            final = ImageChops.multiply(base_img, tomb)
            f = ImageFont.truetype(os.path.join(asset_pos, "Symbola.ttf"), size=35)
            d = ImageDraw.Draw(final)
            w, h = d.textsize(rip_member.name, font=f)
            d.multiline_text(((60 + ((350 - w) / 2)), 315), rip_member.name, fill="Black", font=f, align="center")
            final.save(os.path.join(asset_pos, "rip.png"))
            await self.bot.send_file(ctx.message.channel, os.path.join(asset_pos, "rip.png"), content=msg)
        else:
            content = ctx.message.content.partition(" ")
            user_name = content[2].replace(" ", "_")
            url = "https://ripme.xyz/{}"
            msg = url.format(user_name)
            base_img = Image.new("RGB", (520, 640), color="White")
            tomb = Image.open(os.path.join(asset_pos, "tombstone.png"))
            base_img.paste(tomb)
            f = ImageFont.truetype(os.path.join(asset_pos, "Symbola.ttf"), size=35)
            d = ImageDraw.Draw(base_img)
            text = textwrap.shorten(content[2], width=25, placeholder="")
            w, h = d.textsize(text, font=f)
            d.text(((60 + ((350 - w) / 2)), 315), text, fill="Black", font=f, align="center")
            d.text((160, 450), "2016 - 2016", fill="Black", font=f)
            base_img.save(os.path.join(asset_pos, "rip.jpeg"))
            await self.bot.send_file(ctx.message.channel, os.path.join(asset_pos, "rip.jpeg"), content=msg)