使用 PIL 函数以一定角度添加文本叠加

Question

从此开始

期望的效果将是以下描述的任何一种情况：

但是，我无法克服此错误：images do not match 来自 image.paste 调用

我敢肯定还有其他方法可以创建这种效果，但感觉最干净的方法是制作一个新层并将该层粘贴到原始图像上

round() 被使用，因为我收到错误 int is the expected argument, received float 没有它们。

from PIL import Image, ImageOps, ImageFont, ImageDraw
def addText( img: Image, text: str, position: dict = {}):
    """ 
        example position dict:
        {
            "x": 0.79,
            "y": 0.17,
            "angle": 0.06
        }
    """
    i_w, i_h = img.size

    x = round(i_w * position.get("x", 0.23))
    y = round(i_h * position.get("y", 0.87))
    angle = (
        position.get("angle", 0) * 180
    )  # converts unit radians to degrees i.e. { 1 unit = pi radians= 180 degrees }
    
    
    font_px_height = round(i_h * 0.0475)
    font = ImageFont.truetype("fonts/OpenSans-Semibold.ttf", font_px_height)     
    t_w, t_h = font.getsize(text)
    print(f"font.size {t_w} {t_h}")
     
    
    layer = Image.new("RGBA", (round(t_w * 1.05), round(t_h)))
    

    draw_layer = ImageDraw.Draw(layer)
    draw_layer.rounded_rectangle(
        (0, 0, round(t_w * 1.05), round(t_h)),
        round(t_h / 10)
    )
    draw_layer.text((0, 0), text, fill=(0, 0, 0), font=font)
    

    layer = layer.rotate(angle, expand=1)
    l_w, l_h = layer.size
    l_w = round(l_w)
    l_h = round(l_h)
    layer.show()

    
    img.paste(
        sticker,
        (
            round(x - l_w / 2),
            round(y - l_h / 2),
            round(x + l_w / 2),
            round(y + l_h / 2),
        ),
        sticker,
    )
    return img



try:
    with Image.open(
        "./test.jpg"
    ) as im:
        alt_im = addText(
            im,
            "hello world",
            {"x": 0.23, "y": 0.87, "angle": 0.06},
            )
        alt_im.save("out.jpg")
except Exception as ex:
    print("*Exception output", ex)

Answer 1

所以我最终使用了一个 bodge，在计算过程中只使用 相等的 数字，这样它们每次都会计算出 ints。删除所有提及的 round() 并将其替换为 evenize()

def evenize(*args):
    evenized_numbers = []
    for _n in args:
        n = int(_n)
        if (n % 2) != 0:
            n += 1
        evenized_numbers.append(n)
    if len(evenized_numbers) > 1:
        return tuple(evenized_numbers)
    else:
        return evenized_numbers[0]

很有魅力

使用 PIL 函数以一定角度添加文本叠加

Adding a text overlay at angle with PIL function

python

python-imaging-library