CODEWITHSUNDEEP
c#ocrtesseractleptonica
mkabbanii
mkabbanii

Reputation: 69

Not Able To Use PixConverter.ToPix Leptonica C#

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.

Upvotes: 1

Views: 7254

Answers (4)

Hussin Tsouli
Hussin Tsouli

Reputation: 31

i solved for myself by adding the support package Tesseract.Drawing

Adds support for interop with System.Drawing to Tesseract such as passing Bitmap to Tesseract

check screenshot here

just install it and it will be solved

Upvotes: 3

Carlo Bos
Carlo Bos

Reputation: 3293

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);

Upvotes: 2

Felipe de Macêdo
Felipe de Macêdo

Reputation: 344

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.

Upvotes: 3

TheGeneral
TheGeneral

Reputation: 81563

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

Upvotes: 0

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