Python创建文字图片（居中）/多图片合并（PIL）

た入场券 2023-08-17 16:01 135阅读 0赞

**代码如下：**

import os
    
    import cv2
    import numpy as np
    from PIL import ImageFont, ImageDraw, Image
    
    
    # 生成空白文件
    def new_image(width, height, color, name):
        img = Image.new('RGB', (width, height), (color["r"], color["g"], color["b"]))
        # img.show()
        img.save(name)
    
    
    # 创建字体文件
    def creat_font_img(value, file_name, path):
        # 编辑图片路径
        img = cv2.imread(path)
        # 设置需要显示的字体
        fontpath = "font/simsun.ttc"
        # 32为字体大小
        font = ImageFont.truetype(fontpath, 32)
        img_pil = Image.fromarray(img)
        draw = ImageDraw.Draw(img_pil)
        # 获取字体宽度
        sum_width = 0
        sum_height = 0
        for char in value:
            width, height = draw.textsize(char, font)
            sum_width += width
            sum_height = height
        # 绘制文字信息
        # (100,300/350)为字体的位置，(255,255,255)为白色，(0,0,0)为黑色
        draw.text(((img.shape[1] - sum_width) / 2, (img.shape[0] - sum_height) / 2), value, font=font, fill=(0, 0, 0))
        bk_img = np.array(img_pil)
        # cv2.imshow("add_text", bk_img)
        cv2.waitKey()  # 保存图片路径
        cv2.imwrite(file_name + "_font.png", bk_img)
    
    
    def image_resize(img, size=(1500, 1100)):
        """调整图片大小
        """
        try:
            if img.mode not in ('L', 'RGB'):
                img = img.convert('RGB')
            img = img.resize(size)
        except Exception as e:
            pass
        return img
    
    
    # 合并图片（垂直）
    def image_merge(images, output_dir='./', output_name='merge.jpg', \
                    restriction_max_width=None, restriction_max_height=None):
        """垂直合并多张图片
        images - 要合并的图片路径列表
        ouput_dir - 输出路径
        output_name - 输出文件名
        restriction_max_width - 限制合并后的图片最大宽度，如果超过将等比缩小
        restriction_max_height - 限制合并后的图片最大高度，如果超过将等比缩小
        """
        max_width = 0
        total_height = 0
        # 计算合成后图片的宽度（以最宽的为准）和高度
        for img_path in images:
            if os.path.exists(img_path):
                img = Image.open(img_path)
                width, height = img.size
                if width > max_width:
                    max_width = width
                total_height += height
    
                # 产生一张空白图
        new_img = Image.new('RGB', (max_width, total_height), 255)
        # 合并
        x = y = 0
        for img_path in images:
            if os.path.exists(img_path):
                img = Image.open(img_path)
                width, height = img.size
                new_img.paste(img, (x, y))
                y += height
    
        if restriction_max_width and max_width >= restriction_max_width:
            # 如果宽带超过限制
            # 等比例缩小
            ratio = restriction_max_height / float(max_width)
            max_width = restriction_max_width
            total_height = int(total_height * ratio)
            new_img = image_resize(new_img, size=(max_width, total_height))
    
        if restriction_max_height and total_height >= restriction_max_height:
            # 如果高度超过限制
            # 等比例缩小
            ratio = restriction_max_height / float(total_height)
            max_width = int(max_width * ratio)
            total_height = restriction_max_height
            new_img = image_resize(new_img, size=(max_width, total_height))
    
        if not os.path.exists(output_dir):
            os.makedirs(output_dir)
        save_path = '%s/%s' % (output_dir, output_name)
        new_img.save(save_path)
        return save_path
    
    
    color = {}
    color["r"] = 255
    color["g"] = 255
    color["b"] = 255
    new_image(430, 100, color, "a.jpg")
    creat_font_img("aaaaaaa", "a", "a.jpg")
    creat_font_img("好好好", "b", "a.jpg")
    creat_font_img("emmmmmmmm", "c", "a.jpg")
    image_merge(images=['a_font.png', 'b_font.png', 'c_font.png'], output_name='mer.png')

![20190927183037320.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTk4MDEx_size_16_color_FFFFFF_t_70][]

**具体大家可以自行尝试……**

[20190927183037320.png]: /images/20230810/51cb1ee5c8c1429992de2b7cce4408a9.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NTk4MDEx_size_16_color_FFFFFF_t_70]: /images/20230810/0fb75620ef394b4c8a135db6993ef971.png