脚本-将图片转为圆形

原图如下:

1.jpg

结果图:

2.png

代码:

from PIL import Image, ImageDraw

def picture_turns_round(image, diameter_scale=1):
    """
    将图片转为圆形
    :param image:图片
    :param diameter_scale: 圆形直径与image最短边的比例
    :return:
    """
    radius = int(diameter_scale * min(image.size) / 2)

    rgbm = image.split()
    if len(rgbm) == 4:
        r, g, b, mask = rgbm
    else:
        r, g, b = rgbm
        mask = Image.new('L', image.size, 0)

    mask_draw = ImageDraw.Draw(mask)
    w, h = image.size
    w_, h_ = int(w / 2), int(h / 2)
    xy = ((w_ - radius, h_ - radius), (w_ + radius, h_ + radius))
    mask_draw.ellipse(xy, fill=255)
    return Image.merge('RGBA', (r, g, b, mask))


if __name__ == "__main__":
    img = Image.open('cat.jpg')
    round_img = picture_turns_round(img)
    round_img.show()

使用时若提示PIL没有安装,可以使用pip instal Image来安装