Not Able To Use PixConverter.ToPix Leptonica C#

Question

I wanted to convert a bitmap to Leptonica.Pix.. So after I did a search I found someone who had the same problem here: Tesseract .NET Process image from memory object

So the solution to this problem was to use PixConverter.ToPix() method.

My problem here is that I can't find this method in the latest installed Leptonica Package. I tried to remove the and reinstall the lateset version thought Nuget but the method is still not not there.

What should I do to be able to use PixConverter.ToPix()?. Thanks in advance.

EDIT: I forgot to mention that i'm using the latest Tessercat pacakge too.

Answer 1

It lives in Tesseract namespace, more information can be found here https://github.com/charlesw/tesseract

namespace Tesseract
{
    /// <summary>
    /// Handles converting between different image formats supported by DotNet.
    /// </summary>
    public static class PixConverter
    {
        private static readonly BitmapToPixConverter bitmapConverter = new BitmapToPixConverter();
        private static readonly PixToBitmapConverter pixConverter = new PixToBitmapConverter();

        /// <summary>
        /// Converts the specified <paramref name="pix"/> to a Bitmap.
        /// </summary>
        /// <param name="pix">The source image to be converted.</param>
        /// <returns>The converted pix as a <see cref="Bitmap"/>.</returns>
        public static Bitmap ToBitmap(Pix pix)
        {
            return pixConverter.Convert(pix);
        }

        /// <summary>
        /// Converts the specified <paramref name="img"/> to a Pix.
        /// </summary>
        /// <param name="img">The source image to be converted.</param>
        /// <returns>The converted bitmap image as a <see cref="Pix"/>.</returns>
        public static Pix ToPix(Bitmap img)
        {
            return bitmapConverter.Convert(img);
        }
    }
}

As per the sites landing page

Add the Tesseract NuGet Package by running Install-Package Tesseract from the Package Manager Console.

Also, its worth while reading the site thoroughly.

Disclaimer, i have never used this library before, just looked up the information

Update

Just to make sure i wasn't giving you bad information, I created a new project, downloaded the latest Tesseract nuget. And was able to do the following.

using Tesseract;

...

PixConverter.ToPix()

Update2

The problem you are noticing is because you are using

https://www.nuget.org/packages/tesseract.net/

apposed to

https://www.nuget.org/packages/Tesseract/

Now 'im not sure what one you actually want. However that method dosnt not exist in the former

Answer 2

In Tesseract 4 there is a new way to convert this using the following syntax:

var pixFromByteArray = Pix.LoadFromMemory(byteArray);
var pixFromFile = Pix.LoadFromFile(fileName);

Answer 3

i solved for myself by adding tesseract.drawing package :

check screenshot here

just install it and it will be solved

Answer 4

You need to use the version "3.0.2" for this (PixConverter.ToPix()) to work.

So your .csproj file should have this exact match in version:

<PackageReference Include="Tesseract" Version="3.0.2" />

Hope it helps.