python去除图片水印_Python | 图中使用类的水印

女爷i 2023-03-05 12:54 23阅读 0赞

python去除图片水印

Sometimes, we need to add watermark as a standard category of plots and therefore, we are introducing a new methodology for adding watermark in this article.

有时，我们需要将水印添加为地块的标准类别，因此，我们在本文中介绍了一种添加水印的新方法。

![Python | Watermark in Figure using Class][Python _ Watermark in Figure using Class]

## 使用类的图中水印的Python代码 **(**Python code for watermark in figure using class**)** ##

# Data Visualization using Python
    # WaterMark in Figure
    
    import matplotlib.pyplot as plt
    from matplotlib.figure import Figure
    import numpy as np
    
    class WatermarkFigure(Figure):
        def __init__(self, *args, watermark=None, **kwargs):
            super().__init__(*args, **kwargs)
    
            if watermark is not None:
                bbox = dict(boxstyle='square', lw=3, ec='gray',
                            fc=(0.9, 0.9, .9, .5), alpha=0.3)
                self.text(0.5, 0.5, watermark,
                          ha='center', va='center',
                          fontsize=40, color='gray', alpha=0.3, bbox=bbox)
    
    
    x = np.linspace(-3, 3, 201)
    y = np.exp(-x) + 0.1 * np.cos(5 * x)
    
    plt.figure(FigureClass=WatermarkFigure, watermark='Watermark')
    plt.plot(x, y)

**Output:**

**输出：**

Output is as figure

> 翻译自: [https://www.includehelp.com/python/watermark-in-figure-using-class.aspx][https_www.includehelp.com_python_watermark-in-figure-using-class.aspx]

python去除图片水印

[Python _ Watermark in Figure using Class]: https://www.includehelp.com/python/images/watermark-in-figure-using-class.jpg
[https_www.includehelp.com_python_watermark-in-figure-using-class.aspx]: https://www.includehelp.com/python/watermark-in-figure-using-class.aspx