如何在QtCreator中单击按钮运行python程序并在Qlabel上显示结果

我试图在点击按钮时运行执行python程序，但出现错误

Qt程序：

QProcess p;
QStringList params;
params<<"C:/Users/user/Desktop/image/temp.py";

p.start("C:/Users/user/anaconda3/python.exe",params);    
p.waitForFinished(-1);    
qDebug()<<"finished";

QStringp_stdout=p.readAll();    
qDebug()<<p_stdout;
QStringp_stderr=p.readAllStandardError();    
if(!p_stderr.isEmpty());
qDebug()<<"Pythonerror:"<<p_stderr;

from PIL import Image
import numpy as np

def change(path1,path2):
    im1=Image.open(path1,"r")
    im2=Image.open(path2,"r")

    buffer1=np.asarray(im1) 
    buffer2=np.asarray(im2)
    buffer3=buffer1-buffer2

    changed=Image.fromarray(buffer3)
    im1.show()
    im2.show()

    changed.show()
    changed.save(r"C:\Users\user\Desktop\image\changed.jpg")

    return(changed.show)

change(r"C:\Users\user\Desktop\image\Vale.jpg",r"C:\Users\user\Desktop\image\Vale2.jpg")

QT上出现错误：

finished
""
Python error:
 "Traceback (most recent call last):\r\n File "C:/Users/user/Desktop/image/temp.py", line 1, in <module>\r\n from PIL import Image\r\n File "C:\Users\user\anaconda3\lib\site-packages\PIL\Image.py", line 94, in <module>\r\n from . import _imaging as core\r\nImportError: DLL load failed while importing _imaging: The specified module could not be found.\r\n"

File "C:/Users/user/Desktop/image/temp.py", line 1, in <module> 

from PIL import Image
File "C:\Users\user\anaconda3\lib\site-packages\PIL\Image.py", line 94, in <module>
from . import _imaging as core
ImportError: DLL load failed while importing _imaging: The specified module could not be found.

完成
""
Python错误：
“回溯（最近一次调用）：\r\n文件“C:/Users/user/Desktop/image/temp.py”，第1行，从PIL导入映像\r\n文件“C:\Users\user\anaconda3\lib\site packages\PIL\image.py”，第94行，从.import\r\n作为核心导入映像\r\nImporter错误：导入映像时DLL加载失败：找不到指定的模块。\r\n”

Qt中的第二种方法：（python程序与temp.py相同）

QStringprogram（“C:/Users/user/anaconda3/python.exe”）；
QStringListargs=QStringList（）导入时链接器错误似乎是导入错误：DLL加载失败\u映像：找不到指定的模块。

在这两种情况下返回的都是问题所在。如果有其他方法，请告诉。尝试此操作：添加DLL位置（例如：C:\Programs\Python\Python35\DLS on windows）在环境变量path.u中，您的意思是添加python的路径吗？实际上我正在使用spyder（AnacondaIDE）。我应该添加anaconda的python的位置吗？

File "C:/Users/user/Desktop/image/temp.py", line 1, in <module> 

from PIL import Image
File "C:\Users\user\anaconda3\lib\site-packages\PIL\Image.py", line 94, in <module>
from . import _imaging as core
ImportError: DLL load failed while importing _imaging: The specified module could not be found.