Third commit

Subtractive_Algorithm.py

@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+# @Time    : 2022-7-26 0026 9:58
+# @Author  : Qing
+# @Email   : derighoid@gmail.com
+# @File    : Subtractive_Algorithm.py
+# @Software: PyCharm
+import os.path
+
+import numpy as np
+import matplotlib.pyplot as plt
+from PIL import Image
+from Picture_Reading import *
+
+class ReduceColor(pictureRead):
+    def __init__(self,filePath):
+        self.filePath=filePath
+
+    def readImg(self):
+        face4=Image.open(self.filePath)
+        return face4
+
+    def imageMatrix(self):
+        im4 = np.array(self.readImg())
+        return im4
+
+    # 减色算法
+    def decrease_color(self):
+        out=self.imageMatrix().copy()
+        out=out//64*64+32
+        Image.fromarray((np.uint8(out))).save("E:\\桌面\\Python_Picture_Analysis\\data\\picture8.jpg")
+        return out
+
+    # 展示图片
+    def plt_Img(self):
+        plt.imshow(self.decrease_color())
+        plt.show()
+
+
+    #图像二值化(以128为阈值进行二值化)
+    def imgBinarization(self):
+        a=self.imageGrey()-np.array([[128]])
+        b=np.floor(a/np.array([[256]]))
+        c=b+np.array([[1]],dtype=np.int16)
+        bfilter=c.astype("uint8")
+        result=bfilter*np.array([[255]],dtype=np.uint8)
+        # result=np.array(self.readImg().convert("1"))
+        plt.imshow(result)
+        plt.show()
+        return result
+
+    #保存图片
+    def img_Save(self):
+        root = "E:\\桌面\\Python_Picture_Analysis\\data\\"
+        if not os.path.exists(root):
+            os.mkdir(root)
+        else:
+            Image.fromarray(np.uint8(self.decrease_color())).save(root + 'picture8'+'.jpg')
+            Image.fromarray(np.uint8(self.imgBinarization())).save(root + 'picture9'+'.jpg')
+            print("Picture Save successfully")
+