這是小弟把圖片變灰階的程式: int x,y,c,graylevel; for(y=1;y<=Image1->Picture->Height;y ) { for(x=1;x<=Image1->Picture->Width;x ) { TColor c=Image1->Canvas->Pixels[x][y]; int R=GetRValue(c); int G=GetRValue(c); int B=GetRValue(c); graylevel=(R G B)/3; Image1->Canvas->Pixels[x][y]=(TColor)RGB(graylevel,graylevel,graylevel); } } 想請問各位先拜~~ 小弟現在想要在一個bmp圖片上製造一下隨機ㄉ點雜訊 是不是要加入一個數學函數,而是要怎麼加~~ 還有是否只要加到我ㄉ graylevel後面就行ㄋ??? 能否請先拜指導一下唷~~

limeposn你好  下面的程式是隨機產生一般的白點雜訊,看看你是否用得著 < class="code"> void __fastcall TCap::dot_noise() { Graphics::TBitmap *bmp = new Graphics::TBitmap(); Byte *ptr; int i,j; int threshold; threshold = Form1->ScrollBar1->Position; Form1->Edit1->Text = Form1->ScrollBar1->Position; bmp->Assign(Form1->Image1->Picture->Bitmap); bmp->PixelFormat=pf24bit; for(j=0; jHeight; j ) { ptr = (Byte *)bmp->ScanLine[j]; for(i=0; iWidth; i ) { int test=random(100); if (test<=threshold) { bmp->Canvas->Pixels[i][j]=RGB(255,255,255); } } } Form1->Image2->Picture->Assign(bmp); delete bmp; }

謝謝residue    我有測過ㄌ~~你ㄉcode可以解決我ㄉ問題ㄌ~~    感謝啦

limeposn您好:

1.請參考版規,讓您的程式碼更方便閱讀
http://delphi.ktop.com.tw/topic.php?TOPIC_ID=47262
2.請修改您的標題, 您問的應該是C   Builder而非C# Builder吧

謝謝您的配合< > 順心< >