拜託幫幫忙囉

我真的很急

就是讀入一張影像檔

然後要把影像檔分成四塊

1 2

3 4

向上面這種格式

並且要讀出每個區塊左上級右下角的座標

拜託大家教教我~~~

我已經會讀入檔案了

所以只剩下要怎麼分塊呀???

給你個範例

1:

int h = bmp->Height/2;
int w = bmp->Width/2;
Graphics::TBitmap *bmp1 = new Graphics::TBitmap();
bmp1->Width = w;
bmp1->Height = h;
bmp1->PixelFormat = pf24bit;
for (int i=0;i memcpy(bmp1->ScanLine[i],bmp->ScanLine[i],w*3);
Image1->Picture->Bitmap->Assign(bmp1);
delete bmp1;

2:

int h = bmp->Height/2;
int w = bmp->Width/2;
BYTE *p;
Graphics::TBitmap *bmp1 = new Graphics::TBitmap();
bmp1->Width = w;
bmp1->Height = h;
bmp1->PixelFormat = pf24bit;
for (int i=0;i {
p = (BYTE *)bmp->ScanLine[i];
memcpy((BYTE *)bmp1->ScanLine[i],p w * 3,w*3);
}
Image1->Picture->Bitmap->Assign(bmp1);
delete bmp1;

3:

int h = bmp->Height/2;
int w = bmp->Width/2;
Graphics::TBitmap *bmp1 = new Graphics::TBitmap();
bmp1->Width = w;
bmp1->Height = h;
bmp1->PixelFormat = pf24bit;
for (int i=h;i memcpy(bmp1->ScanLine[i - h],bmp->ScanLine[i],w*3);
Image1->Picture->Bitmap->Assign(bmp1);
delete bmp1;

4:

int h = bmp->Height/2;
int w = bmp->Width/2;
BYTE *p;
Graphics::TBitmap *bmp1 = new Graphics::TBitmap();
bmp1->Width = w;
bmp1->Height = h;
bmp1->PixelFormat = pf24bit;
for (int i=h;i {
p = (BYTE *)bmp->ScanLine[i];
memcpy((BYTE *)bmp1->ScanLine[i - h],p w * 3,w*3);
}
Image1->Picture->Bitmap->Assign(bmp1);
delete bmp1;

自已看一下座標該怎麼去設定吧！

===================引 用 文 章===================

然後要把影像檔分成四塊

1 2

3 4

向上面這種格式

並且要讀出每個區塊左上級右下角的座標