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How to convert BMP to GIF in C#

, 19 Dec 2010
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How to convert BMP to GIF in C#
In this post, I will show you how to convert BMP file to GIF in C#. The first step you must do is to create a Bitmap object. In this example, I passed filename to constructor of this object. Next you need to create ImageCodecInfo and choose the appropriate mime type of output format. You can set quality and compression of output image. In case you need to do this, you must create EncoderParameters object which represents list of EncoderParameter objects. This objects represent set of parameters which encoder uses for image encoding.
 
static void Main(string[] args)
{
    Bitmap myBitmap=new Bitmap(@"test.bmp");
    ImageCodecInfo myImageCodecInfo = GetEncoderInfo("image/gif"); ;
    EncoderParameter encCompressionrParameter = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)EncoderValue.CompressionLZW); ;
    EncoderParameter encQualityParameter = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 0L);
    EncoderParameters myEncoderParameters = new EncoderParameters(2);
    myEncoderParameters.Param[0] = encCompressionrParameter;
    myEncoderParameters.Param[1] = encQualityParameter;
    myBitmap.Save("Output.gif", myImageCodecInfo, myEncoderParameters);
}
 
private static ImageCodecInfo GetEncoderInfo(String mimeType)
{
    int j;
    ImageCodecInfo[] encoders;
    encoders = ImageCodecInfo.GetImageEncoders();
    for (j = 0; j < encoders.Length; ++j)
    {
        if (encoders[j].MimeType == mimeType)
            return encoders[j];
    }
    return null;
}

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Kanasz Robert
Architect The Staffing Edge & Marwin Cassovia Soft
Slovakia Slovakia
My name is Robert Kanasz and I have been working with ASP.NET, WinForms and C# for several years.
MCSD - Web Applications
MCSE - Data Platform
MCPD - ASP.NET Developer 3.5
- Web Developer 4
MCITP - Database Administrator 2008
- Database Developer 2008
MCSA - SQL Server 2012
MCTS - .NET Framework 3.5, ASP.NET Applications
- SQL Server 2008, Database Development
- SQL Server 2008, Implementation and Maintenance
- .NET Framework 4, Data Access
- .NET Framework 4, Service Communication Applications
- .NET Framework 4, Web Applications
MS - Programming in HTML5 with JavaScript and CSS3 Specialist
 
Open source projects: DBScripter - Library for scripting SQL Server database objects
 

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Comments and Discussions

 
QuestionQuality PinmemberNicke Da Silva Manarin9-Oct-13 17:10 
GeneralReason for my vote of 5 very nice Pinmemberhoolly25-Dec-11 22:35 
GeneralRe: Reason for my vote of 5very nice PinmvpKanasz Robert21-Oct-13 2:15 
GeneralGood tip! PinsubeditorWalt Fair, Jr.20-Dec-10 12:09 
GeneralRe: Good tip! PinmvpKanasz Robert21-Oct-13 2:15 
GeneralReason for my vote of 1 No color mapping... Pinmemberlolocmwa8-Dec-10 3:48 
GeneralReason for my vote of 3 Quite decent work. PinmemberToli Cuturicu4-Dec-10 7:43 
GeneralRe: Reason for my vote of 3Quite decent work. PinmvpKanasz Robert21-Oct-13 2:15 
GeneralReason for my vote of 5 Good one Pinmvpthatraja3-Dec-10 1:51 
GeneralRe: Reason for my vote of 5Good one PinmvpKanasz Robert21-Oct-13 2:15 
GeneralReason for my vote of 1 So... PinmemberT-luv1-Dec-10 8:27 

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