find the pixel closest to black

[sickellsell]

Ok, I need to find the pixel closest to black in the picture....So Ive been trying something like

dim cpicture as bitmap

            For y = 10 To cpicture.Height - 15 Step 4
                For x = 10 To ocrpicture.Width - 15 Step 4
                    If colors.black - cpicture.GetPixel(x, y) < 350 Then
                        WORKED()
                        Exit Do
                    End If
                Next x
            Next y
        Loop

But it doesnt work...Something about cant convert to long.

If anyone can find a better way to do this or a working way to do this I would love them.

Thanks

 

[JohnH]

The color closest to Black is the one with Brightness closest to 0, regardless of values of Hue and Saturation. This information is available from theColor.GetBrightness method.