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How to binarize images in python language

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2019-07-08 14:07:59 4540browse

How to binarize images in python language

Python语言是一门比较简单好用的语言,其图像处理也是比较重要的一种应用,那么该怎么实现对对一个图片的二值化处理呢,下面小编给出具体的方法。

1、打开Python的shell界面,如图所示。

How to binarize images in python language

载入相关的库包,代码如下:

from skimage import io,data,color

How to binarize images in python language

读取图片,代码如下:

img=data.

注,这里读取的是工具包中的图片,大家也可以读取自己的图片,可参考实例“如何采用Python读取一个图像”,具体代码如下:

img_name="D:\\WinPython-64bit-3.5.3.0Qt5\\notebooks\\hashiqi.jpg" img=io.imread(img_name,as_grey=False)

How to binarize images in python language

将图片进行灰度化处理,具体指令如下:

img_gray=color.rgb2gray(img)

How to binarize images in python language

对图片进行二值化处理,代码如下;

rows,cols=img_gray.shape for i in range(rows): for j in range(cols): if (img_gray[i,j]<=0.5): img_gray[i,j]=0 else: img_gray[i,j]=1

How to binarize images in python language

查看结果的代码:

io.imshow(img_gray) io.show

How to binarize images in python language

查看我们的效果如下图。前图是二值化之前,后图是二值化之后。

How to binarize images in python language

How to binarize images in python language

更多Python相关技术文章,请访问Python教程栏目进行学习!

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