VisionImage Load Image

[ste_sytech]

Dear comunity,

I am working on vision application, using c# and vision library 2010. I need to fill an object VisionImage with an image from Bitmap class, from memory.

I've already Bitmap object but I've difficult to understand how copy byte[] array bitmap into VisionImage object.

I used this approch:

Bitmap Image2Work;

.

.

.

.

PixelValue2D pv = new PixelValue2D(BmpToBytes(Image2Work)); // BmpToBytes return byte[]

viImg.ArrayToImage(pv);

I can't compile this. PixelValue2D doesn't like byte[] returned from BmpToBytes 

any idea ?

thanks

[Claudio_Guido]

Hi,

I found this on the web:

Initialization:

static Int16[,] intArray=new Int16[320,256];
PixelValue2D pxl=new PixelValue2D(intArray);

in the worker method:

_session.Grab(imageViewer.Image,true); //So I can see the image
pxl=imageViewr.Image.ImageToArray();
intArray=pxl.I16;

Bitmap bmp=new Bitmap(320,256,PixelFormat.Format32bppRgb);
for(int y=0;y
{
for(int x=0;x
{
int val=intArray;
int v =
0xff<<24 | (val<<16) | (val<<8) |val; // This is new  otherwise the image is blue but is still distorted
bmp.SetPixel(x,y,Color.FromArgb(v);
}
}
pictureBox1.Image=bmp;

I hope that this portion of code could help you.

Have a good evening!

Claudio

[ste_sytech]

Where can I find the documentation about PixelValue2D format byte array ?

I need to set ImageVsion oject from Bitmap ojbect.

I tried using follow code, but I've two issues:

1. I can set the ImageVision Object, but the image is rotate 90°
2. the loop into BmpToBytes is too slow.

PixelValue2D pv = new PixelValue2D(BmpToBytes(Image2Work));                       

viImg.SetSize(Image2Work.Width, Image2Work.Height);                       

viImg.ArrayToImage(pv);

private unsafe byte[,] BmpToBytes(Bitmap bmp)       

{      

BitmapData bData = bmp.LockBits(new Rectangle(new Point(), bmp.Size), ImageLockMode.ReadOnly,  bmp.PixelFormat);           

unsafe

        {       // number of bytes in the bitmap               

int byteCount = bData.Stride * bmp.Height;
                byte[] buffTmp = new byte[bData.Stride*bmp.Height];

                byte[,] bmpBytes = new byte[bData.Stride, bmp.Height];

                Marshal.Copy(bData.Scan0, buffTmp, 0, bData.Stride * bmp.Height);

                // Copy the locked bytes from memory               

int iIdx=0;               

for (int ii = bmp.Width - 1; ii > 0; ii--)                               

{                   

for (int i = bmp.Height - 1; i > 0; i--)                   

{                       

bmpBytes[bmp.Width - ii, i] = buffTmp[i * bmp.Width + ii];
                   }                                                   

}                
                // don't forget to unlock the bitmap!!               

bmp.UnlockBits(bData);               

return bmpBytes;           

}                   

}