vb.net - 如何缩放到PictureBox中的特定像素vb.net(How to zoom to a particular pixel in picturebox vb.net)

Question

what i'm trying to do is i have an image which has different blocks to show plots in a housing society, since the file is an image i don't have fields builtin to do this.

(我正在尝试做的是，我有一个图像，该图像具有不同的块来显示房屋社会的地块，因为文件是图像，我没有内置字段来执行此操作。)

At first i thought of maybe adding fields to the blocks but that was shot down as the image file is really big and i have to zoom in to the image which means the fields must change too.

(起初，我想到可能会在块中添加字段，但是由于图像文件很大而被击落，因此我必须放大图像，这意味着字段也必须更改。)

Now what i'm trying to do this by fixing each block with an RGB color and finding that color by searching through all the pixels.

(现在，我正在尝试通过用RGB颜色固定每个块并通过搜索所有像素来找到该颜色来实现此目的。)

now this works and i can find the pixels but i want to be able to zoom to that particular block, how can i do this?

(现在这可以工作，我可以找到像素，但是我希望能够缩放到特定的块，我该怎么做？)

Following is the code i use to loop through the whole bmp image.

(以下是我用来遍历整个bmp图像的代码。)

For i = 0 To img.Width - 1
        For j = 0 To img.Height - 1
            Dim col = img.GetPixel(i, j)
            If (col.R = 100 And col.G = 1 And col.B = 2) Then
                img.SetPixel(i, j, Color.Black)
            End If
        Next
    Next
    Return img

  ask by raza translate from so

Answer 1

等待大神答复