convert image to binary

Klajdi Paja

12y2.4kVisual Basic .NET

I've converted the image in grayscale, and I need to convert it to binary, any Ideas?!!!

8 Replies

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Jignesh Kumar5y ago
Hi,

Please refer this article,
https://www.c-sharpcorner.com/article/convert-image-to-binary/
Kip Hackman5y ago
You can use LEADTOOLS Imaging Pro SDK technology in your application.
https://www.leadtools.com/sdk/products/imaging-pro
You can leverage the AutoBinarizeCommand class, which allows you to apply binary segment to a bitmap.
Here is some sample code:
using (RasterCodecs _codecs = new RasterCodecs())
{
    using (RasterImage _image = _codecs.Load(@"FILE PATH TO IMAGE"))
    {
        AutoBinarizeCommand _command = new AutoBinirizeCommand();
        _command.Run(_image);

        _codecs.Save(_image, @"FILE PATH TO OUTPUT IMAGE", RasterImageFormat.CcittGroup4, 1);
    }
}
Ahmed Fahmy9y ago
Use abbcode function with c# as follows:
Bitmap bmpOutput = ac.ConvertImageToBinary("~/InputPath/ImageName.jpg", 255, ImageFormat.Jpeg, "~/OutputPath/ImageName.jpg");
Replace the parameters values with yours.
Notice that the second parameter is the threshold value and the last two parameters are optional.

Here is the link of function documentation:
https://abbcode.com/documentation/convert-image-to-binary
Munesh Sharma12y ago
byte[] imageBt = null;
FileStream fstream = new FileStream ( this.textBox_image_path.Text , FileMode.Open, FileAccess.Read);
BinaryReader br = new BinaryReader (fstream );
imageBt = br.ReadBytes((int)fstream.Length);

for more go here

http://dotnet-munesh.blogspot.in/2014/05/how-to-save-image-in-database-in-window.html
Aldemir Nolan12y ago

Some of the replies here don't seem to understand what "binary" means. I don't think you on mean "byte data", but you want "binary color", which means pure black and white. Is this correct?

The article suggested by Selva is a good approximation for converting color to grayscale. However, it neither accurately converts to grayscale nor does it convert to pure black and white like the original question.

The article calculates the gray level as the direct average of the red, green and blue values, or:

Gray = ( R + G + B) / 3

A more accurate value gives more weight to green because the human eye is much more sensitive to it. One common algorithm is this:

Gray = (0.25 R + 0.62 G + 0.13 B) / 3
However, if the goal is to convert to black and white instead of gray, more processing is needed depending on your final goal. At some stage you might be better off using a dedicated image processing library such as Leadtools.
Hemant Srivastava12y ago
Here is the link where I am converting an Image into BinaryArray and a BinaryArray back to image:
http://hemant-srivastava.blogspot.com/2012/07/converting-any-image-into-bytearray-and.html
Abhishek Kumar12y ago
Hi,

Follow the below article.

http://www.codeproject.com/Articles/109013/Image-in-Csharp-Save-Resize-and-Convert-to-Binary

Abhishek
Selva Ganapathy12y ago

Hi Klajdi Paja,
Using the following code snippet you can canvert an image to a binary.
BinaryReader r = new BinaryReader();
byte[] b= r.ReadBytes(image);
Also the following article may help you to image conversion
http://www.c-sharpcorner.com/Blogs/13672/convert-a-color-image-into-black-and-white-image.aspx
Regards,
Selva Ganapathy K