I calculate the Hash value of the image, and then calculate a folder all images of Hash value, put it in the List, the last in the FOR loop iterates through, but there has been no results, the following is a code, please leaders to help correct:

 int index=0;//used to list index 


IplImage * image1=(IplImage *) & amp; IplImage (srcImg); 
IplImage * image2=(IplImage *) & amp; IplImage (targetImg); 


String imgPrint1=ImageHashValue (image1); 
String imgPrint2=ImageHashValue (image2); 

Double similarity1; 

List List1. 
for (int i=0; I & lt; ImgPrint2. Length (); I++) 
{
List1. Push_back (imgPrint2); 
Similarity1=ImageSimilarity (imgPrint1 imgPrint2); 
} 
List List2; 
For (int j=0; J & lt; ImgPrint2. Length (); J++) 
{
Similarity1=ImageSimilarity (imgPrint1 imgPrint2); 
List2. Push_back (similarity1); 
M_List. SetItemText (index, j, _T (" similarity1 "));//update//similarity 
index++; 
}