C / C++ / MFC

6-Oct-08 0:42

can anyone send me full code for comparing two bitmaps...
thank you..

Michael Schubert6-Oct-08 0:46

6-Oct-08 0:46

No problem. What's your preferred method of payment? PayPal?

kaushal kishore sharma6-Oct-08 0:51

6-Oct-08 0:51

sry my friend..
i have account on paypal but i have not done any work yet due to busy in college..but if you can provide me the code for this i will be very thankful to you..
rest is your wish..thanks for the reply..

Rajesh R Subramanian6-Oct-08 0:56

Rajesh R Subramanian

6-Oct-08 0:56

Read the guidelines[^] before you make another post.

For once, what is pissing me off is your TXSTPK. Stop using SMS language here. Hundreds of people read it every day. So, act like a professional.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Michael Schubert6-Oct-08 1:01

6-Oct-08 1:01

Rajesh R Subramanian wrote:
For once, what is pissing me off is your TXSTPK

You forgot the ASAP and URGENTZZ

CPallini6-Oct-08 0:52

CPallini

6-Oct-08 0:52

if (bitmap1 == bitmap2)

BTW Don't forget to visit www.cpallini.freeproductz.com for more free 'full code'.
Big Grin | :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Rajesh R Subramanian6-Oct-08 0:54

Rajesh R Subramanian

6-Oct-08 0:54

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

CPallini6-Oct-08 0:55

CPallini

6-Oct-08 0:55

Damnit, you're so fast! Roll eyes | :rolleyes:

kaushal kishore sharma6-Oct-08 0:56

6-Oct-08 0:56

pallini..thnx..but i need a full running code for comparing 2 bitmaps..
i have posted my code but i cant understand what is wrong in my code...
can you help please..

1.
void CPixelView::OnDraw(CDC* pDC)
{
CPixelDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// TODO: add draw code for native data here
{
COLORREF color[255][255],color1[255][255];

CBitmap bitmap,bitmap1;
CString file1,file2,strText;
file1.Format("C:\\1.bmp");
file2.Format("C:\\3.bmp");
CDC dcMemory,dcMemory1;
int r[255][255],R[255][255];
// 1st image HBITMAP hBitmap1 = (HBITMAP)::LoadImage(NULL,file1,IMAGE_BITMAP, 0, 0,LR_LOADFROMFILE );//| LR_CREATEDIBSECTION);
//2nd image HBITMAP hBitmap2 = (HBITMAP)::LoadImage(NULL,file2,IMAGE_BITMAP, 0, 0,LR_LOADFROMFILE );
// Attach the loaded image to the CBitmap object.
bitmap.Attach(hBitmap1);
bitmap1.Attach(hBitmap2);
dcMemory.CreateCompatibleDC(pDC);
dcMemory.SelectObject(&bitmap);
dcMemory1.CreateCompatibleDC(pDC);
dcMemory1.SelectObject(&bitmap1);
pDC->BitBlt(0,0,200,200,&dcMemory,0,0,SRCCOPY);
pDC->BitBlt(0,0,300,700,&dcMemory1,0,0,SRCCOPY);
//for all the pixels
for(int i=0;i<48;i++)
{
for(int j=0;j<48;j++)
{
HDC hDC = ::GetDC(this->GetSafeHwnd());

color[i][j] = ::GetPixel(hDC,i,j);
::ReleaseDC(this->GetSafeHwnd(), hDC);
r[i][j]=GetRValue(color[i][j]);

HDC hDC1 = ::GetDC(this->GetSafeHwnd());

color1[i][j] = ::GetPixel(hDC1,i,j);
::ReleaseDC(this->GetSafeHwnd(), hDC1);
R[i][j]=GetRValue(color1[i][j]);
}
}//got the pixel values

}
}

Michael Schubert6-Oct-08 0:59

6-Oct-08 0:59

kaushal kishore sharma wrote:
allini..thnx..but i need a full running code for comparing 2 bitmaps

He just posted the code.

Maximilien6-Oct-08 1:02

Maximilien

6-Oct-08 1:02

Well, you're "getting there";

Me thing you do not need to keep arrays of COLORREF or the r and R arrays
You should be able to get the size of the bitmaps dynamically (because a bitmap of 48 pixel is really small)
No need to get the DC twice.

Now that you have the color for the same pixel position in both bitmaps; what should you be doing with them ? compare them ? maybe ?

This signature was proudly tested on animals.

kaushal kishore sharma6-Oct-08 5:50

6-Oct-08 5:50

thank you for the reply.
can you tell how to make changes in the code. I am studying VC++ so not too much knowledge about the language.So can you help me with the code.
Yes i am comparing both bitmap for checking whether both images are same or different.

Thank You
kaushal kishore Sharma

kaushal..

Michael Schubert6-Oct-08 0:59

6-Oct-08 0:59

Ingenious. Wink | ;)

Hamid_RT6-Oct-08 4:56

Hamid_RT

6-Oct-08 4:56

And can we use of this code for other formats like jpg? Laugh | :laugh:

CPallini6-Oct-08 6:20

CPallini

6-Oct-08 6:20

Hamid. wrote:
And can we use of this code for other formats like jpg?

Nope. You have to change it:

if ( jpegImage1 == jpegImage2) ...

Details for all image formats on www.cpallini.freeproductz.com.
Smile | :)

Hamid_RT6-Oct-08 7:56

Hamid_RT

6-Oct-08 7:56

I decided to made a supplement for your magic site. Big Grin | :-D

Sauce!6-Oct-08 4:30

Sauce!

6-Oct-08 4:30

how many times do you need to post this same question?

Hamid_RT6-Oct-08 5:03

Hamid_RT

6-Oct-08 5:03

Of course you can use of CImage class for read your bitmap files and like your code you can use of two loop(See CImage::GetPixel) I think its easy than your code.