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How to open image in C# and convert to binary and show it on the form?
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Hi,, How to open image in C# and convert to binary and show it on the form??
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Ashwani Gusain 21-Oct-13 0:29am    
in which format u want, asp.net or windows application
a7med ssss 21-Oct-13 2:55am    
windows application
monochrome image
Zoltán Zörgő 21-Oct-13 4:06am    
Just a note: an image file is always binary data (what else could it be?). Please try to formulate correctly.
a7med ssss 21-Oct-13 5:27am    
@Zoltán Zörgő ,, i know that, but i want choose monochrome image from my pc and convert it to 2d array binary of (0,1) and show the image from this array on form.
Zoltán Zörgő 21-Oct-13 5:33am    
Don't do that, you loose considerable amount of performance. See my answer.

3 solutions

hi try this

on select button click

C#
OpenFileDialog o = new OpenFileDialog();
o.ShowDialog();
path = o.FileName;
pictureBox1.ImageLocation = path;
txtImage.Text = path;


convert to binary
C#
byte[] b = ImageToByte(path);

showing on form
C#
pictureBox1.Image = path;
 
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Updated 20-Oct-13 21:29pm
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a7med ssss 21-Oct-13 3:40am    
thx @Ashwani Gusain ,, but i want the image convert to 2d array Binary (width and height of image) after that, show the image on form from this array.
Ashwani Gusain 21-Oct-13 4:31am    
what u want really. U can acess pixel directaly through this code.
Try This code:-

OpenFileDialog ofdPic= new OpenFileDialog();
if (ofdPic.ShowDialog() == DialogResult.OK) {
	PicPath= ofdPic.FileName;
	Image Img = Image.FromFile(PicPath);
	pictureBox1.Image = Img;
}
 
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Posted
You don't need to convert it to a 2D array, you can access the Pixels directly: http://msdn.microsoft.com/en-us/library/system.drawing.bitmap.getpixel.aspx[^]. Well, this is not quite the fastest method by default, see this to improve performance: Work with bitmaps faster in C#[^]. But you can use other libraries too, to access low level image data[^]. If you want to do image processing, you have to consider OpenCV (EmguCV[^] for .net) in any case.
 
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