public int BRange { get; set; }
BRange # get and set (ConversionLabParameters)
The B component range.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ColorConversion;
public void ConvertDirectToImageExample()
{
// Initialize the RasterCodecs class
RasterCodecs codecs = new RasterCodecs();
// StartUp the ColorConversion.
RasterColorConverterEngine.Startup();
// The input file name
string inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
// load the input image as Bgr.
RasterImage bgrImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1);
// Image buffer array
byte[] bgrBuffer = new byte[bgrImage.BytesPerLine * bgrImage.Height];
bgrImage.Access();
// get image buffer
for (int i = 0; i < bgrImage.Height; i++)
bgrImage.GetRow(i, bgrBuffer, i * bgrImage.BytesPerLine, bgrImage.BytesPerLine);
bgrImage.Release();
// Initialize a new Converter object
RasterColorConverterEngine converter = new RasterColorConverterEngine();
// output Buffer array
byte[] labBuffer = new byte[bgrBuffer.Length];
ConversionParameters convParams = new ConversionParameters();
// Initialize the labParams structure property.
ConversionLabParameters labParameters = ConversionLabParameters.Empty;
// Set its properties
labParameters.AOffset = 128;
labParameters.ARange = 170;
labParameters.BOffset = 96;
labParameters.BRange = 200;
labParameters.LOffset = 0;
labParameters.LRange = 100;
labParameters.Mask = ConversionLabMaskFlags.AOffset |
ConversionLabMaskFlags.ARange |
ConversionLabMaskFlags.BOffset |
ConversionLabMaskFlags.BRange |
ConversionLabMaskFlags.LOffset |
ConversionLabMaskFlags.LRange;
convParams.LabParameters = labParameters;
// Initialize an image to hold the converted buffer.
RasterImage labImage = null;
try
{
// Start the color conversion
converter.Start(ConversionColorFormat.Bgr, ConversionColorFormat.Lab, null);
// Change the Lab properties
convParams.Method = ConversionMethodFlags.ChangeLab;
// Set the updated properties
converter.SetParameters(convParams);
// convert the image buffer
converter.Convert(bgrBuffer, // input buffer
0, // offset from the beginning of the source buffer
labBuffer, // output buffer
0, // offset from the beginning of the destination buffer
bgrImage.Width, // pixels width
bgrImage.Height, // pixels height
bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)),
0); // 0 bytes align
// stop the conversion
converter.Stop();
// Initialize labImage.
labImage = new RasterImage(RasterMemoryFlags.Conventional, bgrImage.Width, bgrImage.Height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, null, IntPtr.Zero, 0);
// convert the image buffer
// The srcBufferOffset parameter is an offset to the start byte of the data in the source buffer.
// For example, if the image data started at byte 5, then this variable should = 5.
// In our example here, the image data starts at byte 0.
// Note that the srcBuffer can be also passed to this function as an IntPtr pointer.
RasterColorConverterEngine.ConvertDirectToImage(
ConversionColorFormat.Lab,
ConversionColorFormat.Bgr,
labBuffer, // converted buffer
0, // offset from the beginning of the source buffer
labImage, // image to be view
bgrImage.Width, // pixels width
bgrImage.Height, // pixels height
0, // 0 bytes align
bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)));
// dispose the used image
bgrImage.Dispose();
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
// Shutdown the ColorConversion.
RasterColorConverterEngine.Shutdown();
// the output File Name.
string outputFileName = Path.Combine(LEAD_VARS.ImagesDir, "ResultImage.bmp");
// Save the converted Image
codecs.Save(labImage, outputFileName, RasterImageFormat.Bmp, 24);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
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