I thought is to iterate through the image, use map statistical color histogram, and then map sort by value, the final results, always feel to do so stupid, have bosses have other method

CodePudding user response:

No one,,,

CodePudding user response:

 
BMP "//" 
Void CBmpColorsDlg: : OnButton1 () 
{
CWaitCursor wait; 
CRect the rect. 
//
GetClientRect (& amp; The rect); 
The CDC * pDc=GetDC (); 
The CDC dcMem. 
DcMem. CreateCompatibleDC (pDc); 
DcMem. SelectObject (& amp; M_img);//
PDc - & gt; BitBlt (0, 0, m_bmWidth m_bmHeight, & amp; DcMem, 0, 0, SRCCOPY); 
//get all colors 
STD: : vector ColorIndex; 
For (int y=0; Y & lt; M_bmHeight; Y++) 
{
For (int x=0; X & lt; M_bmWidth; X++) 
{
COLORREF RGB=dcMem. GetPixel (x, y); 
ColorIndex. Push_back (RGB); 
} 
} 
//statistics all sorts of color number 
Int Total=colorIndex. The size ();//m_bmHeight * m_bmWidth=253760; 
//afxDump & lt; STD: : vector The list; 
ListData temp (colorIndex [0], 0).//start from 0 
List. The push_back (temp);//[0]=0 xfefefe; Len=4069 
//color data analysis 
Int N=1; 
For (int I=0; i {//take out each colorIndex [I], with N see if the list [j]. Color of an equal 
For (int j=0; J & lt; N; J++) 
{
If (colorIndex [I]==a list [j]. Journal of color)//when I=0,==
{
The list [j] num++; 
break;//the next I 
} 
If (j)==N - 1 
{//if not equal, and it is colorIndex last one, is this colorIndex added to the list 
ListData temp (colorIndex [I], 1);//start from 1 
List. The push_back (temp); 
N++;//for I next time & lt; The Total, more than a list [j]. Journal of color 
break;//must! Otherwise; The Size!=Total 
} 
} 
} 
//
Cstrings num. 
Int numMax=0; 
Cstrings color; 
Int Size=0; 
Int colors=list. The size (); 
M_ListBox. ResetContent (); 
For (int jj=0; Jj{
Color. The Format (" 0 x % of 06 x ", the list [jj]. Color); 
Size +=list [jj] num; 
If (numMax & lt; List [jj] num) numMax=list [jj]. Num. 
Num. The Format (" % d ", a list [jj] num); 
+ num m_ListBox. AddString (color); 
} 
Color. The Format (" % d % d ", colors - 1, Size); 
M_ListBox. AddString (color); 
//66843-66612=231 
If (the Size!=Total) AfxMessageBox (" Lost something?" ); 
TRACE1 (" % d ", numMax);//6215 
//the draw color Histogram x, y num 
//double kY=200.0/numMax; 
//x 
//# define top 500 
//# define LFT fell 20 
//pDc - & gt; MoveTo (LFT fell, top); 
//pDc - & gt; The LineTo (LFT fell + 300, top); 
//for (int kk=0; Kk & lt; Colors; Kk++) 
//{
//pDc - & gt; MoveTo (LFT fell + kk, top); 
//pDc - & gt; LineTo (LFT fell + kk, top - (int) (list) [r]. Kk num * kY)); 
//} 
The ReleaseDC (pDc); 
} 

CodePudding user response:

Reply 2 floor, ListData is what? You define your own classes? I can't search

CodePudding user response:

refer to the second floor schlafenhamster response:

 
BMP "//" 
Void CBmpColorsDlg: : OnButton1 () 
{
CWaitCursor wait; 
CRect the rect. 
//
GetClientRect (& amp; The rect); 
The CDC * pDc=GetDC (); 
The CDC dcMem. 
DcMem. CreateCompatibleDC (pDc); 
DcMem. SelectObject (& amp; M_img);//
PDc - & gt; BitBlt (0, 0, m_bmWidth m_bmHeight, & amp; DcMem, 0, 0, SRCCOPY); 
//get all colors 
STD: : vector ColorIndex; 
For (int y=0; Y & lt; M_bmHeight; Y++) 
{
For (int x=0; X & lt; M_bmWidth; X++) 
{
COLORREF RGB=dcMem. GetPixel (x, y); 
ColorIndex. Push_back (RGB); 
} 
} 
//statistics all sorts of color number 
Int Total=colorIndex. The size ();//m_bmHeight * m_bmWidth=253760; 
//afxDump & lt; STD: : vector The list; 
ListData temp (colorIndex [0], 0).//start from 0 
List. The push_back (temp);//[0]=0 xfefefe; Len=4069 
//color data analysis 
Int N=1; 
For (int I=0; i {//take out each colorIndex [I], with N see if the list [j]. Color of an equal 
For (int j=0; J & lt; N; J++) 
{
If (colorIndex [I]==a list [j]. Journal of color)//when I=0,==
{
The list [j] num++; 
break;//the next I 
} 
If (j)==N - 1 
{//if not equal, and it is colorIndex last one, is this colorIndex added to the list 
ListData temp (colorIndex [I], 1);//start from 1 
List. The push_back (temp); 
N++;//for I next time & lt; The Total, more than a list [j]. Journal of color 
break;//must! Otherwise; The Size!=Total 
} 
} 
} 
//
Cstrings num. 
Int numMax=0; 
Cstrings color; 
Int Size=0; 
Int colors=list. The size (); 
M_ListBox. ResetContent (); 
For (int jj=0; Jj{
Color. The Format (" 0 x % of 06 x ", the list [jj]. Color); 
Size +=list [jj] num; 
If (numMax & lt; List [jj] num) numMax=list [jj]. Num. 
Num. The Format (" % d ", a list [jj] num); 
+ num m_ListBox. AddString (color); 
} 
Color. The Format (" % d % d ", colors - 1, Size); 
M_ListBox. AddString (color); 
//66843-66612=231 
If (the Size!=Total) AfxMessageBox (" Lost something?" ); 
TRACE1 (" % d ", numMax);//6215 
//the draw color Histogram x, y num 
//double kY=200.0/numMax; 
//x 
//# define top 500 
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